CN109615822B - School bus omission preventing alarm system and method based on child watch - Google Patents
School bus omission preventing alarm system and method based on child watch Download PDFInfo
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- CN109615822B CN109615822B CN201910045095.1A CN201910045095A CN109615822B CN 109615822 B CN109615822 B CN 109615822B CN 201910045095 A CN201910045095 A CN 201910045095A CN 109615822 B CN109615822 B CN 109615822B
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
- G08B21/0205—Specific application combined with child monitoring using a transmitter-receiver system
- G08B21/0208—Combination with audio or video communication, e.g. combination with "baby phone" function
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
- G08B21/0269—System arrangements wherein the object is to detect the exact location of child or item using a navigation satellite system, e.g. GPS
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Abstract
The invention provides a school bus anti-omission alarm system and method based on a child watch, wherein a speed sensor is used for detecting the speed of a vehicle to judge the running state of the school bus, a GPS system of the school bus is combined with a GPS system of the child watch to respectively detect the position information of the school bus and the speed and position information of the child, the speed and position information of the child are compared with the position information of the school bus to judge the situation that the child gets on or off the school bus, the collected data is subjected to clustering analysis to preliminarily judge whether an omission phenomenon occurs, and an early warning device is combined to determine whether the school bus has the omission phenomenon of the child; if the child omission phenomenon occurs, the data processing module starts the early warning device, the early warning device automatically sends child omission information to a driver and a teacher, and the early warning device continuously gives an alarm until the child is saved. According to the invention, whether children are missed is judged by combining the child watch GPS and the school bus GPS, so that the harm of child missing accidents of the school bus is reduced, and the child watch GPS and the school bus GPS are suitable for receiving and delivering the school bus by pupil.
Description
Technical Field
The invention belongs to the field of vehicle alarm, and relates to a school bus omission-preventing alarm system and method based on a child watch.
Background
Along with the continuous reform and development of schools in China, school buses become special transportation means for students to go up and down, especially pupil. However, the popularization of school buses brings convenience to traffic and a series of accidents. In recent years, accidents in which infants are missed in school buses continue to occur.
In the school bus accidents reported in recent years, two factors are found to be the key to cause the accidents, and firstly, the non-special school bus is used as a school bus; secondly, due to the inattention of school bus drivers and accompanying personnel. The result is a heavy hit for both the home and society, regardless of the factors. Particularly in summer, due to carelessness of the accompanying person, when a driver or the accompanying person cannot check whether the student remains on the car in time after getting off, the student stays in the car and is choked to die because of overhigh temperature in the car. Due to the particularity of accident objects, school bus safety accidents are also changed into a socialization problem, and the public attention is paid.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a school bus omission preventing alarm system and method based on a child watch, which reduce the occurrence of school bus omission casualties.
The invention is realized by the following technical scheme:
a school bus omission-preventing alarm system based on a child watch comprises a speed sensor, a school bus GPS module, a data processing module and an early warning device; the input end of the data processing module is wirelessly connected with the output ends of the school bus GPS module, the child watch GPS module and the speed sensor, and the output end of the data processing module is electrically connected with the early warning device;
the speed sensor is used for detecting the speed of the school bus and transmitting the speed to the data processing module;
the school bus GPS module is used for acquiring the position information and the speed information of the school bus in real time and transmitting the position information and the speed information to the data processing module;
the data processing module is used for receiving data information transmitted by the speed sensor and the school bus GPS module, receiving child position information and speed information transmitted by the child watch GPS module, judging the school bus running state and the child getting-on and getting-off condition, and determining whether the school bus has a child omission phenomenon or not; if the child omission phenomenon occurs, the data processing module sends an alarm instruction to the early warning device;
the early warning device is used for receiving an alarm instruction of the data processing module to alarm and sending missing information of children to related personnel.
Preferably, the vehicle speed sensor is a W211 wheel speed sensor.
Preferably, the data processing module comprises a 4G signal receiving module.
Further, the 4G signal receiving module adopts a Longshan 4G communication module.
Preferably, the early warning device is an AD16-22SM type flashing buzzer.
Preferably, the relevant person is a driver and/or teacher.
Preferably, the early warning device is fixed at the tail turn light of the school bus.
The school bus omission preventing alarm method based on the child watch comprises the following steps of:
s1, a speed sensor acquires the speed of a school bus in real time and transmits the speed to a data processing module, and when the school bus is started, the data processing module judges that the speed of the school bus is changed from zero to be more than zero and executes the step S2;
s2, starting a 4G acquisition module by a data processing module, acquiring the speed and the position of the school bus and the speed and the position signals of all children in real time, judging that the children get on the school bus when the speed of the children is the same as the speed of the school bus and the difference value between the position signals of the children and the position signals of the school bus is smaller than the length of the school bus body, and counting the children getting on the school bus by the data processing module to obtain the number n of children getting on the school bus;
s3, in the data received by the data processing module, the speed of the school bus is reduced to 0, meanwhile, the speed of the child is reduced to 0, the speed of the school bus is 0 within a preset parking time threshold, and the school bus is determined to be in a parking state at the moment;
s4, the data processing module performs cluster analysis on the acquired GPS data of the child watch to obtain data distribution of the child speed and position change; if only one group of data distribution is obtained, executing the step S6, and if two groups of data distribution are obtained, enabling one group of data with the data sample larger than n/2 to be a first group of data, and the other group of data to be a second group of data; analyzing the second set of data: if the speed of the child in the second group of data is 0, the position is not changed all the time, the child omission phenomenon is primarily judged to occur, and the step S5 is executed; if the speed of the child starts to be 0 and changes after a period of time, the GPS position difference of the child and the school bus is continuously changed but is always smaller than the length of the school bus body, the child omission phenomenon is determined, and the step S6 is executed; otherwise, executing the step S7;
s5, the data processing module sends out a control signal to enable the early warning device to send out an alarm, and when the alarm time reaches a preset alarm time threshold value, the early warning device sends out an alarm in the alarm time period: if the speed of the child in the second group of data is always 0 and the position is not changed all the time, judging that the watch is omitted, ending the early warning, automatically sending watch omission information to a teacher and a school bus driver by a data processing module, and executing the step 7; if the speed of the child watch changes, but the GPS position difference between the child and the school bus is continuously changed but is always smaller than the length of the school bus body, determining that the child omission phenomenon occurs, and executing the step S6;
s6, the data processing module controls the early warning device to continuously early warn and send child missing information to a teacher and a school bus driver until the GPS position difference between the child and the school bus is larger than the length of the school bus body, early warning is finished, and step S7 is executed;
and S7, the data processing module calculates and analyzes to obtain no children omission, and the alarm system stops working.
Preferably, in step S3, the parking time threshold is 8-15min.
Preferably, in step S5, the alarm time threshold is set to 3-5min.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the invention, the speed sensor is used for detecting the speed of a vehicle to judge the running state of the school bus, then the GPS system of the school bus is combined with the GPS system of the watch of the child to respectively detect the position information of the school bus and the speed and the position information of the child, the speed and the position information of the child are compared with the position information of the school bus to judge the situation that the child gets on or gets off the bus, the collected data are subjected to clustering analysis to preliminarily judge whether the omission phenomenon occurs, and the early warning device is combined to determine whether the school bus has the omission phenomenon of the child; if the child omission phenomenon occurs, the data processing module starts the early warning device, the early warning device automatically sends child omission information to a driver and a teacher, and the early warning device continuously gives an alarm until the child is saved. According to the invention, whether children are missed is judged by combining the child watch GPS and the school bus GPS, so that the harm of child missing accidents of the school bus is reduced, and the child watch GPS and the school bus GPS are suitable for receiving and delivering the school bus by pupil.
Drawings
FIG. 1 is a schematic block diagram of a child watch-based school bus anti-omission alarm system of the present invention;
FIG. 2 is a workflow diagram of the child watch-based school bus anti-omission alarm system of the present invention.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings, which illustrate but do not limit the invention.
The school bus omission-preventing alarm system based on the child watch comprises a speed sensor, a school bus GPS module, a child watch GPS module, a data processing module and an early warning device; the vehicle speed sensor is fixedly arranged on a steering knuckle of a front wheel of the vehicle; the school bus GPS module is arranged at a car roof lamp above the front windshield; the child watch GPS module is specifically based on the watch model; the data processing module is arranged in the school bus CPU system, and the early warning device is fixed at left and right steering lamps at the tail of the vehicle. The data processing module comprises a signal receiver which is a 4G signal receiving module.
Referring to fig. 1, a schematic circuit structure of the anti-omission alarm system for school buses of the invention is shown. The input end of the data processing module is wirelessly connected with the output ends of the school bus GPS module, the child watch GPS module and the vehicle speed sensor through the 4G signal receiving module, and the output end of the data processing module is electrically connected with the early warning device.
The speed sensor is used for detecting the speed of the school bus and transmitting the speed to the data processing module.
The school bus GPS module is used for acquiring the position information of the school bus in real time and transmitting the position information to the data processing module; the child watch GPS module is used for acquiring child position information and speed information in real time and transmitting the child position information and speed information to the data processing module.
The data processing module receives data information transmitted by the speed sensor, the school bus GPS module and the child watch GPS module, judges the operation state of the school bus, the position and the speed of the child, judges the situation of getting on or off the school bus, performs cluster analysis on the acquired data, preliminarily judges whether a missing phenomenon occurs, and determines whether the missing phenomenon of the child occurs in the school bus by combining an early warning device; if the child omission phenomenon occurs, the data processing module starts the early warning device, the early warning device automatically sends child omission information to a driver and a teacher, and the early warning device continuously gives an alarm until the child is saved.
The vehicle speed sensor adopts a W211 wheel speed sensor.
The data processing module is a central processing unit with a 4G module, and the 4G module adopts a Dragon 4G communication module.
A microprocessor with a 4G module.
The early warning device is an AD16-22SM type flashing buzzer.
Referring to fig. 2, the anti-omission warning system for school buses is suitable for a scene that children get on and get off simultaneously, and the working process comprises the following steps:
s1, a speed sensor is used for collecting the speed of a school bus where a driver is located in real time and transmitting the speed to a data processing module, and when the school bus is started, the data processing module judges that the speed of the vehicle collected by the speed sensor is changed from zero to be greater than zero, and step S2 is executed.
S2, the data processing module starts a 4G acquisition module to acquire speed and position of the school bus and speed and position signals of all children in real time. When the speed of the child is the same as the speed of the school bus and the difference value between the child position signal and the school bus position signal is smaller than the length of the school bus body, the child is judged to get on the school bus, the data processing module counts the child on the school bus to obtain the number n of the child on the school bus, and the step S3 is executed.
S3, in the data acquired by the data processing module, the speed of the school bus is reduced to 0, meanwhile, the speed of the child is reduced to 0, the speed of the school bus is 0 within a preset parking time threshold, the school bus is determined to be in a parking state at the moment, judgment and analysis are carried out on whether the child is missing from the school bus, and step S4 is executed.
S4, the data processing module performs cluster analysis on the acquired GPS data of the child watch to obtain data distribution of the child speed and position change. If only one set of data is obtained, step S6 is executed, and if two sets of data are obtained, one set of data with data samples larger than n/2 is made to be the first set of data, and the other set of data is made to be the second set of data. Analyzing the second group of data, and when the speed of the child in the second group of data is 0 and the position is unchanged all the time, primarily judging that the child omission phenomenon occurs, and executing the step S5; when the condition 2 is met, the speed of the child starts to be 0 and changes after a period of time, but the GPS position difference between the child and the school bus continuously changes and is always smaller than the length of the school bus body, determining that the child omission phenomenon occurs, and executing the step S6; when neither condition 1 nor condition 2 is satisfied, step S7 is performed;
s5, the data processing module sends out a control signal to enable the early warning device to send out an alarm, meanwhile, the data processing module analyzes the acquired data, when the alarm time reaches a preset alarm time threshold value, in the alarm time period, (1) if the speed of the child in the second group of data is always 0 and the position is not changed all the time, the child is judged to be missed by the watch, the early warning is finished, the data processing module automatically sends watch missing information to a teacher and a school bus driver, and the step 7 is executed; (2) If the speed of the child watch changes, but the GPS position difference between the child and the school bus is continuously changed but is always smaller than the length of the school bus body, the child omission phenomenon is determined to occur, and the step S6 is executed.
And S6, the data processing module controls the early warning device to continuously early warn and send child missing information to a teacher and a school bus driver until the GPS position difference between the child and the school bus is larger than the length of the school bus body, and early warning is finished. Step S7 is performed.
S6, the data processing module calculates and analyzes to obtain a stop signal without missing children.
In steps S1 and S2, the vehicle is determined to be started through a vehicle speed sensor, and the 4G signal receiving module is further started so as to be convenient for next data acquisition. The child watch information registration is carried out when the child enters the school, the data processing module collects GPS information of each registered watch through the 4G signal receiving module, when the speed of the child watch is the same as the speed of the school bus and the difference value between the child position signal and the school bus position signal is smaller than the length of the school bus body, the child is judged to go on the school bus, and the data processing module counts the child.
In step S3, after a certain time threshold, the school bus is judged to be in a parking state, and whether the school bus has children missing judgment and analysis is carried out. The part sets the parking time threshold to 8-15min, and can be changed according to specific situations. For example, the stop time threshold may be appropriately set to be greater for a traffic segment.
In step S4, when the vehicle satisfies the condition 1, the position of the child watch speed 0 in the second set of data is not changed all the time, that is, the missing phenomenon is primarily determined. And only entering S5, whether the phenomenon of omission of children occurs or not can be determined, and the children are rescued through an alarm.
In step S5, the data processing module sends out a control signal, an alarm lasting for a certain time is sent out through the early warning device, when the alarm time reaches a preset alarm time threshold value, whether the phenomenon of omission of children or omission of watches occurs under the condition of condition 1 in step S4 is judged, if the position coordinates of the watches of children in the automobile are not changed in the alarm process of a certain time, the early warning is judged to be ended when the omission of the watches, and the data processor automatically sends information watches to the school bus driver and the teacher. If the speed of the child watch changes in the alarm process for a certain time, the GPS position difference between the child and the school bus is continuously changed but is always smaller than the length of the school bus body, and the child is determined to be omitted. Once the child omission is determined, the data processing module automatically sends child omission information to school bus drivers and teachers, and the warning device can continuously warn until the GPS position difference between the child and the school bus is larger than the length of the school bus body, and the child is saved at the moment, and the warning is finished. The threshold value of the preliminary alarm time is set to 3-5min, and the preliminary alarm time can be adjusted according to specific conditions.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several substitutions and obvious modifications can be made without departing from the spirit of the invention, and the same should be considered to be within the scope of the invention.
Claims (3)
1. The school bus omission preventing alarm method based on the child watch is characterized by comprising a school bus omission preventing alarm system based on the child watch, wherein the school bus omission preventing alarm system based on the child watch comprises a speed sensor, a school bus GPS module, a data processing module and an early warning device; the input end of the data processing module is wirelessly connected with the output ends of the school bus GPS module, the child watch GPS module and the speed sensor, and the output end of the data processing module is electrically connected with the early warning device;
the speed sensor is used for detecting the speed of the school bus and transmitting the speed to the data processing module;
the school bus GPS module is used for acquiring the position information and the speed information of the school bus in real time and transmitting the position information and the speed information to the data processing module;
the data processing module is used for receiving data information transmitted by the speed sensor and the school bus GPS module, receiving child position information and speed information transmitted by the child watch GPS module, judging the school bus running state and the child getting-on and getting-off condition, and determining whether the school bus has a child omission phenomenon or not; if the child omission phenomenon occurs, the data processing module sends an alarm instruction to the early warning device;
the early warning device is used for receiving an alarm instruction of the data processing module to alarm and sending missing information of children to related personnel;
the method comprises the following steps:
s1, a speed sensor acquires the speed of a school bus in real time and transmits the speed to a data processing module, and when the school bus is started, the data processing module judges that the speed of the school bus is changed from zero to be more than zero and executes the step S2;
s2, starting a 4G acquisition module by a data processing module, acquiring the speed and the position of the school bus and the speed and the position signals of all children in real time, judging that the children get on the school bus when the speed of the children is the same as the speed of the school bus and the difference value between the position signals of the children and the position signals of the school bus is smaller than the length of the school bus body, and counting the children getting on the school bus by the data processing module to obtain the number n of children getting on the school bus;
s3, in the data received by the data processing module, the speed of the school bus is reduced to 0, meanwhile, the speed of the child is reduced to 0, the speed of the school bus is 0 within a preset parking time threshold, and the school bus is determined to be in a parking state at the moment;
s4, the data processing module performs cluster analysis on the acquired GPS data of the child watch to obtain data distribution of the child speed and position change; if only one group of data distribution is obtained, executing the step S6, and if two groups of data distribution are obtained, enabling one group of data with the data sample larger than n/2 to be a first group of data, and the other group of data to be a second group of data; analyzing the second set of data: if the speed of the child in the second group of data is 0, the position is not changed all the time, the child omission phenomenon is primarily judged to occur, and the step S5 is executed; if the speed of the child starts to be 0 and changes after a period of time, the GPS position difference of the child and the school bus is continuously changed but is always smaller than the length of the school bus body, the child omission phenomenon is determined, and the step S6 is executed; otherwise, executing the step S7;
s5, the data processing module sends out a control signal to enable the early warning device to send out an alarm, and when the alarm time reaches a preset alarm time threshold value, the early warning device sends out an alarm in the alarm time period: if the speed of the child in the second group of data is always 0 and the position is not changed, judging that the watch is missed, ending the early warning and automatically sending watch missing information to a teacher and a school bus driver by the data processing module, and executing the step S7; if the speed of the child watch changes, but the GPS position difference between the child and the school bus is continuously changed but is always smaller than the length of the school bus body, determining that the child omission phenomenon occurs, and executing the step S6;
s6, the data processing module controls the early warning device to continuously early warn and send child missing information to a teacher and a school bus driver until the GPS position difference between the child and the school bus is larger than the length of the school bus body, early warning is finished, and step S7 is executed;
and S7, the data processing module calculates and analyzes to obtain no children omission, and the alarm system stops working.
2. The child watch-based school bus omission prevention alarm method according to claim 1, wherein in step S3, the parking time threshold is 8-15min.
3. The child watch-based school bus omission prevention alarm method according to claim 1, wherein in step S5, the alarm time threshold is set to 3-5min.
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| CN201910045095.1A CN109615822B (en) | 2019-01-17 | 2019-01-17 | School bus omission preventing alarm system and method based on child watch |
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| CN109615822A (en) | 2019-04-12 |
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