CN212047262U

CN212047262U - Rear-end collision prevention control system after collision

Info

Publication number: CN212047262U
Application number: CN202020169447.2U
Authority: CN
Inventors: 廖立勋
Original assignee: Foshan Pioneer Technology Co ltd
Current assignee: Foshan Pioneer Technology Co ltd
Priority date: 2020-02-13
Filing date: 2020-02-13
Publication date: 2020-12-01
Anticipated expiration: 2030-02-13

Abstract

The utility model relates to a vehicle field of preventing knocking into the back discloses a collision back control system of preventing knocking into the back, including singlechip, wireless communication module, GPS orientation module, alarm module, collision response module and power module, the singlechip is connected with wireless communication module, GPS orientation module, alarm module, collision response module and power module respectively; the power supply module comprises a voltage input end, a transformer, a switch, a first resistor, a first capacitor, a bidirectional thyristor, a rectifier bridge, a second capacitor, a first diode, a first triode, a three-terminal voltage stabilizer, a second resistor, a third capacitor, a third potentiometer and a voltage output end, wherein one end of the voltage input end is connected with one end of a primary coil of the transformer, and the other end of the voltage input end is connected with the other end of the primary coil of the transformer. Implement the utility model discloses, following beneficial effect has: the circuit structure is simpler, the cost is lower, convenient maintenance, the security and the reliability of circuit are higher.

Description

Rear-end collision prevention control system after collision

Technical Field

The utility model relates to a field of knocking into the back is prevented to the vehicle, in particular to control system prevents knocking into the back after collision.

Background

In recent years, road traffic safety situation is more and more severe, and traffic accidents bring great loss to families, groups and countries, and become a serious problem worldwide. Statistics show that the accidents caused by rear-end collision are the most in a plurality of highway traffic accidents, and the development of a vehicle rear-end collision-prevention early warning system is urgently needed. The vehicle rear-end collision avoidance early warning system can send accident information to other vehicles after a vehicle has a collision accident, and other vehicles around the vehicle can acquire the accident information in time in a wireless mode, so that sufficient time and distance are available for response, such as early deceleration, avoidance and the like, the occurrence of vehicle superposition accidents can be effectively prevented, and the driving safety of the vehicle is improved. Fig. 1 is a schematic circuit diagram of a power supply part of a conventional vehicle rear-end collision avoidance early warning system, and it can be seen from fig. 1 that the power supply part of the conventional vehicle rear-end collision avoidance early warning system uses many components and parts, and has a complex circuit structure, high hardware cost and inconvenient maintenance. In addition, because the power supply part of the conventional vehicle rear-end collision avoidance early warning system lacks corresponding circuit protection functions, for example: the safety and reliability of the circuit are poor due to the lack of the current-limiting protection function.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a circuit structure comparatively simple, the cost is lower, convenient maintenance, the security of circuit and the higher collision back of reliability prevent knocking into back control system.

The utility model provides a technical scheme that its technical problem adopted is: the control system for preventing rear-end collision after collision is constructed and comprises a single chip microcomputer, a wireless communication module, a GPS positioning module, an alarm module, a collision induction module and a power supply module, wherein the single chip microcomputer is respectively connected with the wireless communication module, the GPS positioning module, the alarm module, the collision induction module and the power supply module;

the power supply module comprises a voltage input end, a transformer, a switch, a first resistor, a first capacitor, a bidirectional thyristor, a rectifier bridge, a second capacitor, a first diode, a first triode, a three-terminal regulator, a second resistor, a third capacitor, a third potentiometer and a voltage output end, wherein one end of the voltage input end is connected with one end of a primary coil of the transformer, the other end of the voltage input end is connected with the other end of the primary coil of the transformer, one end of a secondary coil of the transformer is respectively connected with one end of the switch and one end of the bidirectional thyristor, the other end of the bidirectional thyristor is connected with an alternating current input end of the rectifier bridge, the other end of the switch is connected with one end of the first resistor, and the other end of the first resistor is respectively connected with one end of the first capacitor, a control end of the bidirectional thyristor and an anode of the first diode, the cathode of the first diode is connected with the collector of the first triode, and the other end of the secondary coil of the transformer is respectively connected with the other end of the first capacitor and the other alternating current input end of the rectifier bridge;

a direct current output end of rectifier bridge respectively with the one end of second electric capacity and three terminal regulator's input are connected, three terminal regulator's output with the one end of second resistance is connected, three terminal regulator's regulation end respectively with the other end of second resistance, a stiff end of third potentiometre and the one end of voltage output end are connected, the base of first triode respectively with the one end of third electric capacity and the slip end of third potentiometre are connected, another direct current output end of rectifier bridge respectively with the other end of second electric capacity, the projecting pole of first triode, the other end of third electric capacity, another stiff end of third potentiometre and the other end of voltage output end are connected.

In the rear-end collision prevention control system of the present invention, the first diode has a model of S-272T.

Prevent control system that knocks into back after the collision in, power module still includes the fourth resistance, the one end of fourth resistance with the one end of second electric capacity is connected, the other end of fourth resistance with three terminal regulator's input is connected.

In the rear-end collision prevention control system of the present invention, the resistance of the fourth resistor is 32k Ω.

Prevent control system that knocks into back after the collision among, first triode is NPN type triode.

Prevent control system that knocks into back after the collision in, bidirectional thyristor's model is MCR100-6/0.8A 400V, rectifier bridge's model is GBPC25005, three terminal regulator's model is AN 7805.

Prevent control system that knocks into back after the collision in, wireless communication module is in 5G communication module, 4G communication module, bluetooth module, wiFi module, GSM module, CDMA2000 module, WCDMA module, TD-SCDMA module, Zigbee module and loRa module arbitrary one or arbitrary several kinds of combinations.

Implement the utility model discloses a control system prevents knocking into back after the collision has following beneficial effect: the system is provided with a singlechip, a wireless communication module, a GPS positioning module, an alarm module, a collision sensing module and a power supply module; power module includes voltage input end, the transformer, a switch, first resistance, first electric capacity, bidirectional thyristor, the rectifier bridge, the second electric capacity, first diode, first triode, three terminal regulator, the second resistance, the third electric capacity, third potentiometre and voltage output end, this power module compares with traditional vehicle collision avoidance early warning system's power supply part, its components and parts that use are less, owing to saved some components and parts, can reduce the hardware cost like this, in addition, first diode is used for carrying out current-limiting protection, therefore circuit structure is comparatively simple, the cost is lower, convenient maintenance, the security and the reliability of circuit are higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic circuit diagram of the power supply portion of a conventional vehicle rear-end collision avoidance early warning system;

fig. 2 is a schematic structural diagram of an embodiment of the rear-end collision prevention control system of the present invention;

fig. 3 is a schematic circuit diagram of the power supply module in the embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the embodiment of the rear-end collision prevention control system of the present invention, the schematic structural diagram of the rear-end collision prevention control system is shown in fig. 2. In fig. 2, the control system for preventing rear-end collision after collision comprises a single chip microcomputer 1, a wireless communication module 2, a GPS positioning module 3, an alarm module 4, a collision sensing module 5 and a power supply module 6, wherein the single chip microcomputer 1 is respectively connected with the wireless communication module 2, the GPS positioning module 3, the alarm module 4, the collision sensing module 5 and the power supply module 6.

When a vehicle has a collision accident, the single chip microcomputer 1 acquires a collision signal sent by the collision sensing module 5 and a position signal sent by the GPS positioning module 3, and then transmits the collision signal and the position signal in a wireless output mode through the wireless communication module 2, the wireless communication module 2 on the non-accident vehicle can be in a receiving state in real time and transmits the received collision signal and position signal sent by the accident vehicle to the singlechip 1, namely, when the vehicle is in an accident, the wireless communication module 2 is used for sending accident information of the vehicle, when other vehicles are in an accident (the vehicle is a non-accident vehicle), the wireless communication module 2 is also used for receiving the accident information sent by other vehicles, the single chip microcomputer 1 is also used for triggering the alarm module 4 to send out reminding information according to collision signals and position signals sent by other vehicles. The reminding information can be an alarm signal sent by the alarm module 4 and vehicle distance information sent by the distance output device, so that the drivers of other vehicles can be warned and can be informed of the distance between the other drivers and the accident vehicle, corresponding emergency measures can be taken, and the alarm module 4 and the distance output device are integrated.

The single chip microcomputer 1 acquires a vehicle collision signal through a whole vehicle bus network, when a vehicle collides, the single chip microcomputer 1 can communicate with the GPS positioning module 3 through the SPI channel to determine the position of the vehicle, then the collision signal and the position signal of the vehicle are sent to the wireless communication module 2, the wireless communication module 2 is switched from a standby state to a sending state, and the accident information of the current accident vehicle is sent out wirelessly; the wireless communication module 2 on the peripheral running vehicle is in a standby monitoring state in advance, when the situation that accident information is sent within 2 kilometers of the monitored radius is detected, the wireless communication module 2 is switched from the standby state to a receiving state, then the information is received and sent to the single chip microcomputer 1, the single chip microcomputer 1 can be internally provided with related programs to judge an accident range threshold value, and if the distance is within the threshold value, the single chip microcomputer 1 sends an alarm message and a position message of an accident vehicle through a bus; then an alarm is given through the alarm module 4.

In this embodiment, the wireless communication module 2 is any one or a combination of any several of a 5G communication module, a 4G communication module, a bluetooth module, a WiFi module, a GSM module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module, and a LoRa module. Through setting up multiple wireless communication mode, not only can increase the flexibility of wireless communication mode, can also satisfy the demand of different users and different occasions. Especially, when adopting the loRa module, its communication distance is far away, and communication performance is comparatively stable, is applicable to the occasion that requires the communication quality to be higher. The adoption of the 5G communication mode can achieve high data rate, reduce delay, save energy, reduce cost, improve system capacity and realize large-scale equipment connection.

Fig. 3 is a schematic circuit diagram of a power supply module in this embodiment, in fig. 3, the power supply module 6 includes a voltage input terminal Vin, a transformer T, a switch S, a first resistor R1, a first capacitor C1, a triac SCR, a rectifier bridge Z, a second capacitor C2, a first diode D1, a first triode Q1, a three-terminal regulator U1, a second resistor R2, a third capacitor C3, a third potentiometer RP3, and a voltage output terminal Vo, wherein one end of the voltage input terminal Vin is connected to one end of a primary coil of the transformer T, the other end of the voltage input terminal Vin is connected to the other end of the primary coil of the transformer T, one end of a secondary coil of the transformer T is connected to one end of the switch S and one end of the triac SCR, the other end of the triac SCR is connected to an ac input terminal of the rectifier bridge Z, the other end of the switch S is connected to one end of the first resistor R1, the other end of the first resistor R1 is connected to one end of the first capacitor C1, the control end of the triac SCR, and the anode of the first diode D1, respectively, the cathode of the first diode D1 is connected to the collector of the first triode Q1, and the other end of the secondary coil of the transformer T is connected to the other end of the first capacitor C1 and the other ac input end of the rectifier bridge Z, respectively.

One direct current output end of the rectifier bridge Z is connected with one end of a second capacitor C2 and the input end of a three-terminal regulator U1, the output end of the three-terminal regulator U1 is connected with one end of a second resistor R2, the adjusting end of the three-terminal regulator U1 is connected with the other end of a second resistor R2, one fixed end of a third potentiometer RP3 and one end of a voltage output end Vo, the base of a first triode Q1 is connected with one end of a third capacitor C3 and the sliding end of a third potentiometer RP3, and the other direct current output end of the rectifier bridge Z is connected with the other end of the second capacitor C2, the emitter of the first triode Q1, the other end of the third capacitor C3, the other fixed end of the third potentiometer RP3 and the other end of the voltage output end Vo.

In the embodiment, the model of the bidirectional controllable silicon SCR is MCR100-6/0.8A/400V, the model of the rectifier bridge Z is GBPC25005, and the model of the three-terminal regulator U1 is AN 7805.

Compared with the power supply part of the traditional vehicle rear-end collision avoidance early warning system in the figure 1, the power supply module 6 has the advantages that the number of used components is small, the circuit structure is simple, the maintenance is convenient, and the hardware cost can be reduced due to the fact that some components are saved. In addition, the first diode D1 is a current limiting diode for current limiting protection of the collector current of the first transistor Q1. The current limiting protection principle is as follows: when the collector current of the first triode Q1 is large, the first diode D1 can reduce the collector current of the first triode Q1 to keep the first triode Q1 in a normal working state, and the device in the circuit is not burnt out due to the large current, so that the safety and reliability of the circuit are high. It should be noted that in the present embodiment, the first diode D1 has a model number S-272T. Of course, in practical applications, the first diode D1 may also be another type of diode with the same function.

The utility model discloses a constant current circuit that three terminal regulator U1 and second resistance R2 are constituteed, the nominal steady voltage value that the output constant current value is approximately equal to three terminal regulator U1 divides with second resistance R2, and the switch is pressed to the power consumption or when charging the battery, and bidirectional thyristor SCR switches on. When the power load is high, the third potentiometer RP3 is preset, the first triode Q1 is conducted, the bidirectional thyristor SCR is closed, the power supply is automatically cut off, the charging is stopped or an electric appliance loop is cut off, the protection function is realized while the current is constant, fewer electronic components are adopted, the cost is low, and the power supply has popularization and application values.

In this embodiment, the first transistor Q1 is an NPN transistor. Of course, in practical application, the first transistor Q1 may also be a PNP transistor, but the structure of the circuit is changed accordingly.

In this embodiment, the power supply module 6 further includes a fourth resistor R4, one end of the fourth resistor R4 is connected to one end of the second capacitor C2, and the other end of the fourth resistor R4 is connected to the input terminal of the three-terminal regulator U1. The fourth resistor R4 is a current limiting resistor for current limiting protection. The current limiting protection principle is as follows: when the current of the branch where the fourth resistor R4 is located is large, the current of the branch where the fourth resistor R4 is located can be reduced by the fourth resistor R4, so that the branch can be kept in a normal operating state, and the components in the circuit cannot be burned out due to the large current, so that the safety and reliability of the circuit are further enhanced. It should be noted that, in the present embodiment, the resistance of the fourth resistor R4 is 32k Ω. Of course, in practical applications, the resistance of the fourth resistor R4 may be increased or decreased according to specific situations.

In a word, in this embodiment, this power module 6 compares with the power supply part of traditional vehicle collision avoidance early warning system that knocks into back, and its components and parts that use are less, and circuit structure is comparatively simple, and convenient maintenance can reduce the hardware cost like this owing to saved some components and parts. In addition, the power supply module 6 is provided with a current limiting diode, so that the safety and the reliability of the circuit are high.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rear-end collision prevention control system after collision is characterized by comprising a single chip microcomputer, a wireless communication module, a GPS positioning module, an alarm module, a collision induction module and a power supply module, wherein the single chip microcomputer is respectively connected with the wireless communication module, the GPS positioning module, the alarm module, the collision induction module and the power supply module;

2. The post-crash rear-end collision avoidance control system of claim 1, wherein said first diode is of type S-272T.

3. The rear-end collision prevention control system according to claim 2, wherein the power supply module further comprises a fourth resistor, one end of the fourth resistor is connected with one end of the second capacitor, and the other end of the fourth resistor is connected with the input end of the three-terminal regulator.

4. The rear-end collision avoidance control system according to claim 3, wherein the fourth resistor has a resistance value of 32k Ω.

5. The system of any one of claims 1 to 4, wherein the first transistor is an NPN transistor.

6. The control system of any one of claims 1 to 4, wherein the type of the triac is MCR100-6/0.8A/400V, the type of the rectifier bridge is GBPC25005, and the type of the three-terminal regulator is AN 7805.

7. The system of any one of claims 1 to 4, wherein the wireless communication module is any one or a combination of any more of a 5G communication module, a 4G communication module, a Bluetooth module, a WiFi module, a GSM module, a CDMA2000 module, a WCDMA module, a TD-SCDMA module, a Zigbee module and a LoRa module.