CN208421601U

CN208421601U - Dynamic monitoring system power switch

Info

Publication number: CN208421601U
Application number: CN201821358015.5U
Authority: CN
Inventors: 赵国柱
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-08-22
Filing date: 2018-08-22
Publication date: 2019-01-22
Anticipated expiration: 2028-08-22

Abstract

Passenger and freight transportation is managed in vehicle operation, it is necessary to which the driver for opening dynamic monitoring system, but having maliciously closes dynamic monitoring system (normally closed dynamic monitoring system power switch) in vehicle operation to escape supervision.The utility model provides the power switch that can be automatically opened in pent situation, including input, output circuit, manual switch, isolating diode, power switching module, power switching module control circuit, power switching module control circuit include control module, bleeder circuit, time delay module, human body sensor, vehicle motion sensor.If driver closes dynamic monitoring system, power switching module control circuit detection vehicle is currently running or someone on vehicle is allowed among supervision department's monitoring with regard to the power switch of positive opening dynamic monitoring system whithin a period of time.

Description

Dynamic monitoring system power switch

Technical field

The utility model relates to a kind of power switches, are especially suitable for the electricity that vehicle dynamic monitoring system is managed in passenger and freight transportation Source switch.

Background technique

Currently, managing vehicle supervision to reinforce passenger and freight transportation, each passenger and freight transportation is managed vehicle all rigid requirements and is installed Dynamic monitoring system, and require in the process of running, driver must not close dynamic monitoring system, so that supervision department is timely Monitoring, but the driver having supervises to escape, and it is (normally closed maliciously to close dynamic monitoring system in vehicle operation Dynamic monitoring system power switch).It needs to manage vehicle thus for passenger and freight transportation and is provided in vehicle operation and dynamically supervise The novel dynamic monitoring system power switch that can be automatically opened in the control pent situation of system power supply.

Utility model content

The purpose of this utility model is to provide a kind of dynamic monitoring system power switches, to solve in above-mentioned background technique The problem of proposition.

The utility model is realized in this way:

Dynamic monitoring system power switch, including input, output circuit, manual switch, isolating diode, power switch mould Block, power switching module control circuit.

The input, output circuit, the anode (Vin+) and cathode (Vin-) of input terminal are connect with external dc power, defeated The anode (Vout+) and cathode (Vout-) of outlet are connect with load circuit, the cathode of the cathode (Vin-) of input terminal, output end (Vout-) it publicly (GND) is connect with power supply.

The manual switch one end connection input, output circuit input terminal anode (Vin+), manual switch it is another End connects the anode of the isolating diode, the anode (Vout+) of the cathode of isolating diode and input, output circuit output end Connection；

The power switching module is controlled the operation for carrying out on or off, electricity by the power switching module control circuit The input terminal of source switch module is connect with the anode (Vin+) of input, the input terminal of output circuit, the output of power switching module The anode (Vout+) of the output end with input, output circuit is held to connect, the control signal input and power supply of power switching module The connection of switch module control circuit；

The power switching module control circuit includes control module, bleeder circuit, time delay module, human body sensor, vehicle Motion sensor.

Further, the bleeder circuit is made of first resistor, second resistance, capacitor, and the one of the first resistor End is connect with the positive of the isolating diode, the other end of first resistor respectively with one end of the second resistance, the electricity The first input end of positive, the described control module of appearance connects, the other end ground connection of second resistance, the cathode ground connection of capacitor；Institute The output end for stating human body sensor is connect with the trigger signal input terminal of the time delay module, the output end of time delay module with it is described Second input terminal of control module connects；The third input terminal of the output end of the vehicle motion sensor and the control module Connection；The control signal output of the control module is connect with the control signal input of the power switching module；It is described The end Vcc of control module is connect with the anode (Vin+) of input, the input terminal of output circuit, the end Vss of control module is grounded.

Preferably, the delay time of the time delay module is adjustable, and delay time adjustable extent is 300~1800 Second.

The utility model has the advantages that:

It is effectively prevented passenger and freight transportation and manages car operation personnel or driver's closing dynamic monitoring system power supply, to hide Supervision department's supervision.

Detailed description of the invention

Fig. 1 is the circuit diagram of the utility model；

K1 is manual switch in figure, and K2 is power switching module, and D1 is isolating diode, and R1 is first resistor, R2 the Two resistance, C1 are capacitor, and 1 is power switching module control circuit, Vin+ be input, the anode of the input terminal of output circuit, Vin- be input, output circuit input terminal cathode, Vout+ be input, the anode of the output end of output circuit, Vout- is It inputs, the cathode of the output end of output circuit, Pi1 is the first input end of control module, and Pi2 is the second input of control module End, Pi3 are the third input terminal of control module, and Po is the output end of control module.

Specific embodiment

The utility model is described in further detail with specific embodiment with reference to the accompanying drawing.

The present embodiment please refers to Fig. 1, dynamic monitoring system power switch, including inputs, output circuit, manual switch K1, Isolating diode, power switching module K2, power switching module control circuit 1.

The manual switch is the manual control switch of the opening dynamic monitoring system power supply provided for driver, described manual One end connection input of switch K1, output circuit input terminal anode (Vin+), the other end connection of manual switch K1 it is described every The cathode of anode from diode D1, isolating diode D1 is connect with the anode (Vout+) of input, output circuit output end；This Any one of toggle switch, button switch or toggle switch, isolating diode D1 choosing can be selected in embodiment, manual switch K1 Use germanium diode.

The power switching module K2 is controlled the fortune for carrying out on or off by the power switching module control circuit 1 Row, the input terminal of the power switching module K2 are connect with the anode (Vin+) of input, the input terminal of output circuit, power switch The output end of module K2 is connect with the anode (Vout+) of input, the output end of output circuit, the control signal of power switching module Input terminal is connect with power switching module control circuit 1；Relay, transistor can be selected in the present embodiment, power switching module K2 Or any one of field-effect tube.

The power switching module control circuit 1 includes control module, bleeder circuit, time delay module, human body sensor, vehicle Motion sensor.

Whether the bleeder circuit detection driver opens the manual switch K1 and transmits information to the control Module, bleeder circuit are made of first resistor R1, second resistance R2, capacitor C1, one end of the first resistor R1 and it is described every From diode D1 anode connection, the other end of first resistor R1 respectively with one end of the second resistance R2, the capacitor C1 Positive, the described control module first input end Pi1 connection, the other end ground connection of second resistance R2, the cathode of capacitor C1 connects Ground；The present embodiment, first resistor R1 and second resistance R2 resistance value ratio select 5: 1, and capacitor C1 selects electrolytic capacitor, and parameter is 4.7μf/16V。

Whether there is or not driver and passenger and the control module is transmitted information on human body sensor detection vehicle, the people The output end of body sensor is connect with the trigger signal input terminal of the time delay module, the output end of time delay module and the control Second input terminal Pi2 connection of module；The present embodiment, human body sensor select the model PD632 of pyroelectric human body sensor Or HC-SR501 human body infrared induction module, increasing time delay module between human body sensor and control module is to consider operation vehicle Period got on the bus in such as station waiting Passengen need not open dynamic monitoring system although someone on vehicle immediately；It is preferred that , the delay time of the time delay module is adjustable, and delay time adjustable extent is 300~1800 seconds, when optimal delay Between adjustable extent be 600~900 seconds, the present embodiment, time delay module select main chip NE555 regulating delay time, External trigger long delay module.

Whether the vehicle motion sensor detection vehicle runs and transmits information to the control module, the vehicle The output end of motion sensor is connect with the third input terminal Pi3 of the control module, and the present embodiment, vehicle motion sensor is adopted With machinery inertial sensor.

The control module is detected according to the bleeder circuit, the human body sensor, the vehicle motion sensor Information controls power switching module K2 on or off operation, the control signal output Po of the control module with it is described The control signal input of power switching module K2 connects；Control module can be the electricity including at least one processor Road can be the circuit including at least one single-chip microcontroller, or the combining form of a variety of circuits or chip, as long as Corresponding function may be implemented.

External dc power provides operating voltage, the end Vcc of the control module and input, output for the control module Anode (Vin+) connection of the input terminal of circuit, the end Vss of the control module are grounded；External dc power is also delay mould Block, human body sensor, vehicle motion sensor provide operating voltage (being not drawn into figure).

The utility model works in this way: if driver normally opens dynamic monitoring system (power switch i.e. hand Dynamic switch K1), the bleeder circuit obtains high level and is sent to the first input end Pi1 of the control module, then control module Output end Po be low level, the power switching module K2 be off state；

If driver closes dynamic monitoring system (power switch, that is, manual switch K1), the bleeder circuit is low electricity The first input end Pi1 of the control module is put down and be sent to, and meets following any one condition or full terms, the control The output end Po of module is high level, then power switching module K2 is on state, positive opening dynamic monitoring system (power supply Switch), it is allowed among supervision department's monitoring.

1) someone on the human body sensor detection vehicle, and be more than the delay time of setting, the human body sensor warp High level is sent to the second input terminal of control module Pi2 by the time delay module；

2) the vehicle motion sensor detection vehicle is moving, and high level is sent to control module third input terminal Pi3.

When external dc power closes (pulling out turnkey, such as vehicle pull-in, maintenance), control module is lost Electricity, power switching module K2 are then off state.

Claims

1. dynamic monitoring system power switch, including input, output circuit, manual switch, isolating diode, power switch mould Block, power switching module control circuit, which is characterized in that the input, output circuit, the anode (Vin+) and cathode of input terminal (Vin-) it is connect with external dc power, the anode (Vout+) and cathode (Vout-) of output end are connect with load circuit, input The cathode (Vin-) at end, the cathode (Vout-) of output end publicly (GND) are connect with power supply；One end of the manual switch connects The anode (Vin+) of input, output circuit input terminal is connect, the other end of manual switch connects the anode of the isolating diode, every Cathode from diode is connect with the anode (Vout+) of input, output circuit output end；The power switching module is by the electricity The control of source switch module control circuit carries out the operation of on or off, the input terminal of power switching module and input, output electricity The anode (Vin+) of the input terminal on road connects, the output end and the anode of input, the output end of output circuit of power switching module (Vout+) it connects, the control signal input of power switching module is connect with power switching module control circuit；The power supply is opened Closing module control circuit includes control module, bleeder circuit, time delay module, human body sensor, vehicle motion sensor.

2. dynamic monitoring system power switch according to claim 1, which is characterized in that the bleeder circuit is by first Resistance, second resistance, capacitor composition, the positive of one end of first resistor and the isolating diode connect, first resistor it is another One end is connect with the first input end of one end of second resistance, positive, the described control module of capacitor respectively, second resistance it is another One end ground connection, the cathode ground connection of capacitor；The trigger signal input terminal of the output end of the human body sensor and the time delay module Connection, the output end of time delay module are connect with the second input terminal of the control module；The output of the vehicle motion sensor End is connect with the third input terminal of the control module；The control signal output of the control module and the power switch mould The control signal input of block connects；The anode (Vin+) at the end Vcc of the control module and input, the input terminal of output circuit It connects, the end Vss of control module ground connection.

3. dynamic monitoring system power switch according to claim 1, which is characterized in that the delay of the time delay module Time is adjustable, and delay time adjustable extent is 300~1800 seconds.