CN209028452U - A kind of remote sensing monitoring control circuit - Google Patents

Abstract

The utility model discloses a kind of remote sensing monitoring control circuits, belong to remote sensing monitoring power protection and system self-reset technique field.The utility model includes power module, under-voltage over-voltage control module, level time-delay conversion module and hardware cold reset module, the level time-delay conversion module parallel with one another and hardware cold reset module are electrically connected under-voltage over-voltage control module, and the under-voltage over-voltage control module is electrically connected power module.The power module of the utility model is controlled jointly by the output signal of the under-voltage over-voltage control module of under-voltage over-voltage control module and the output signal of hardware cold reset module; level time-delay conversion module is controlled by the output signal of hardware reset module simultaneously; mutually coordinated work between modules; to when input power be in over-voltage, it is under-voltage when; it not only can protect late-class circuit, while can also realize the cold start function of back-end system.

Description

A kind of remote sensing monitoring control circuit

Technical field

The utility model belongs to remote sensing monitoring power protection and system self-reset technique field, specifically, being related to one kind Remote sensing monitoring control circuit.

Background technique

At present in remote sensing monitoring field, there are two types of the main mounting means of monitoring device, mobile and fixed.Due to outer Boundary's environmental disturbances, such as electromagnetic interference, mechanical oscillation, the reasons such as power supply unusual fluctuation cause system some abnormal conditions, such as equipment occur Circuit burnout, the situations such as circuit operation irregularity, needs to protect interlock circuit.

Chinese patent publication No.: 103713724 A of CN；Date of publication: on 04 09th, 2014, a kind of charged pool is disclosed The power-off start-up circuit and control method of equipment, the circuit include: triode Q2 and PMOS tube Q3, divider resistance R1, R2 and R3, current-limiting resistance R4, pull-up resistor R5 and key switch；One end of key switch and battery supply, one end of R5 and Q3 Source electrode connection；Q3 grid is connected with the collector of the R5 other end and Q2.Q3 drain electrode is system power supply output end；The base stage of Q2 It is connected with one end of R4, the emitter ground connection of Q2；The other end of R4 is connected with the other end of one end of R1 and key switch；R1 The other end be connected with I/0 mouthfuls；One end of R3 is connected with the other end of key switch.One end of the other end of R3 and R2 with set Standby MCU detecting foot connection；R2 other end ground connection.The utility model makes equipment under fully powered-off mode by key switch Starting reduces the system power dissipation of electrification pool equipment, prolongs the service life.But the utility model is disadvantageous in that: although The utility model can reduce the system power dissipation of electrification pool equipment, but the utility model can not reduce all power-supply devices System power dissipation can not improve the overall operation efficiency of equipment while being protected in all directions to power supply, reduce investment at This.

Utility model content

1, it to solve the problems, such as

For the existing easy failure of remote sensing monitoring circuit power, lead to the problem that equipment work efficiency is low, the utility model mentions For a kind of remote sensing monitoring control circuit.The utility model not only can protect late-class circuit, while can also realize back-end system Cold start function.

2, technical solution

To solve the above problems, the utility model adopts the following technical scheme.

A kind of remote sensing monitoring control circuit, including power module, under-voltage over-voltage control module, level time-delay conversion module and Hardware cold reset module, the level time-delay conversion module parallel with one another and hardware cold reset module are electrically connected under-voltage over-voltage Control module, the under-voltage over-voltage control module are electrically connected power module.

Further, the power module includes power supply U1, and the port VIN of the power supply U1 is electrically connected by resistance R1 It connects the port EN of power supply U1, be electrically connected the port GND1 of power supply U1, the electricity by capacitor C5 parallel with one another and capacitor C6 The port EN of source U1 is electrically connected level time-delay conversion module.

Further, the power supply U1 includes N number of port VO, and N >=1 and N are integer, while the power supply U1 The port VO the port GND2 of power supply U1, the port GND1 of the power supply U1 are electrically connected by two capacitors parallel with one another It is electrically connected with the port GND2 by resistance R11.

Further, the under-voltage over-voltage control module includes voltage comparator U2, the VCC of the voltage comparator U2 Port is electrically connected the port UVV of voltage comparator U2 by resistance R6 and resistance R8, passes through resistance R6, resistance R8 and resistance R9 is electrically connected the port OVV of voltage comparator U2, is electrically connected electricity by resistance R6, resistance R8, resistance R9 and resistance R10 The port GND of comparator U2 is pressed, wherein the resistance R6, resistance R8, resistance R9 and resistance R10 are parallel with zener diode D1, The zener diode D1 is parallel with capacitor C8, while the voltage comparator U2Port andPort and level are delayed Conversion module is electrically connected.

Further, the level time-delay conversion module includes transistor S1 and transistor S2, the transistor S1's Base stage is with voltage comparator U2'sPort andPort passes through by resistance R3 electric connection, with the emitter of transistor S1 Resistance R2 is electrically connected, and the collector of the transistor S1 and the base stage of transistor S2 pass through resistance R4 electric connection and crystal The emitter of pipe S2 is electrically connected by capacitor C7, wherein the capacitor C7 is parallel with resistance R5, the current collection of the transistor S2 The port EN of pole electric connection power supply U1.

Further, the hardware cold reset module includes light-coupled isolation hardware cold reset module and hardware reset mould Block, the light-coupled isolation hardware cold reset module are electrically connected hardware reset module.

Further, the light-coupled isolation hardware cold reset module includes photo-coupler OC1, the photo-coupler OC1 Anode by resistance R7 be electrically connected the port VCC of voltage comparator U2, cathode and hardware reset module be electrically connected, current collection Pole is electrically connected voltage comparator U2'sPort andPort, transmitter are electrically connected the port GND1 of the power supply U1.

Further, the hardware reset module includes the port RESET, and the port RESET is electrically connected voltage ratio Compared with device U2'sPort andPort.

Further, the port RESET includes the port RESET1 and the port RESET2, the port RESET1 and light The cathode of coupler OC1 is electrically connected, and the collector of the port RESET2 and photo-coupler OC1 are electrically connected.

3, beneficial effect

Compared with the prior art, the utility model has the following beneficial effects:

(1) the remote sensing monitoring control circuit of the utility model includes power module, under-voltage over-voltage control module, level delay Conversion module and hardware cold reset module, wherein power module is controlled by the output signal of level time-delay conversion module, together When level time-delay conversion module by under-voltage over-voltage control module output signal and hardware reset module output signal jointly into Row control, mutually coordinated work between modules, thus when input power be in over-voltage, it is under-voltage when, not only It can protect late-class circuit, while can also realize the cold start function of back-end system；

(2) power module of the utility model includes power supply U1, and the port VIN of power supply U1 is electrically connected electricity by resistance R1 The port EN of source U1, the port GND1 that power supply U1 is electrically connected by capacitor C5 parallel with one another and capacitor C6, the EN of power supply U1 Port is electrically connected level time-delay conversion module, and wherein the port EN of power supply U1 is connected with low and high level, so as to preferably The output of each modular power source is controlled, and then end control system or the power down hard reset function of completion rear class system after protection may be implemented Energy；

(3) it is integer that the power supply U1 of the utility model, which includes N number of port VO, wherein N >=1 and N, and the size of N is by specific The circuit quantity for needing to connect determined, to have more practicability, while each port VO pass through two it is parallel with one another Capacitor is electrically connected the port GND2 of power supply U1, and the port GND1 of power supply U1 is electrically connected with the port GND2 by resistance R11 It connects, so that power supply U1 can preferably keep being closely connected between the circuit of each connection, mutually control each other；

(4) the under-voltage over-voltage control module of the utility model includes voltage comparator U2, wherein the VCC of voltage comparator U2 Port is electrically connected the port UVV of voltage comparator U2 by resistance R6 and resistance R8, passes through resistance R6, resistance R8 and resistance The port OVV of R9 electric connection voltage comparator U2, while voltage comparator U2Port andPort and level delay turn Mold changing block be electrically connected, thus when power supply U1 the port VIN occur over-voltage, it is under-voltage when, the port OVV of voltage comparator U2 and The port UVV will export low level, and then start level time-delay conversion module；

(5) the level time-delay conversion module of the utility model includes transistor S1 and transistor S2, and wherein transistor S1 is PNP transistor, transistor S2 is NPN transistor, while the base stage of the collector of transistor S1 and transistor S2 pass through resistance R4 It is electrically connected, is electrically connected with the emitter of transistor S2 by capacitor C7, and capacitor C7 parallel resistance R5, thus transistor S1 It can charge when conducting for capacitor C7, and capacitor C7 can then power for transistor S2, and then ensure that level time-delay conversion mould The normal operation of block；

(6) the hardware reset module of the utility model includes light-coupled isolation hardware cold reset module and hardware reset module, Wherein light-coupled isolation hardware cold reset module includes photo-coupler OC1, and wherein the anode of photo-coupler OC1 is electrical by resistance R7 The port VCC, cathode and the electric connection of hardware reset module, the collector for connecting voltage comparator U2 are electrically connected voltage comparator U2'sPort andPort, transmitter are electrically connected the port GND1 of the power supply U1, so as to realize rear end control system System IO control interface isolated from power；

(7) the hardware reset module of the utility model includes the port RESET, and the port RESET is electrically connected voltage comparator U2'sPort andPort, while the port RESET includes the port RESET1 and the port RESET2, wherein the port RESET1 with The cathode of photo-coupler OC1 is electrically connected, and the collector of the port RESET2 and photo-coupler OC1 are electrically connected, so as to reality The power down hard reset function of end control system after now.

Detailed description of the invention

Fig. 1 is the circuit diagram of the utility model remote sensing monitoring control circuit；

Fig. 2 is the circuit diagram of the utility model power module；

Fig. 3 is the circuit diagram of the under-voltage over-voltage control module of the utility model；

Fig. 4 is the circuit diagram of the utility model level time-delay conversion module；

Fig. 5 is the circuit diagram of the utility model light-coupled isolation hardware cold reset module；

Fig. 6 is the circuit diagram of the utility model hardware reset module.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Wherein, it is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Therefore, below to providing in the accompanying drawings The detailed description of the embodiments of the present invention be not intended to limit the range of claimed invention, but only Indicate the selected embodiment of the utility model.

With reference to Fig. 1, this implementation provides a kind of remote sensing monitoring control circuit, mainly includes four kinds of modules, respectively power supply Module, under-voltage over-voltage control module, level time-delay conversion module and hardware reset module, wherein power module, under-voltage excessively voltage-controlled It is parallel with one another between molding block, level time-delay conversion module and hardware reset module, it is uniformly powered by same power supply, Power module is controlled by the output signal of level time-delay conversion module simultaneously, wherein under-voltage over-voltage control module is power supply guarantor The primary control circuit of shield, level time-delay conversion module by under-voltage over-voltage control module output signal and hardware reset module Output signal is controlled jointly, mutually coordinated between modules, work together by the control of hardware reset module, To remote sensing monitoring input power is controlled when, when input power be in over-voltage, it is under-voltage when, not only can protect Late-class circuit, while can also realize the cold start function of back-end system, solution at present can only be by manually first powering off system The problem of just can solve, such as circuit state are powered on again.

1 power module of embodiment

With reference to Fig. 2, this implementation provides a kind of remote sensing monitoring control circuit, and power module includes power supply U1, wherein power supply The port VIN of U1 is electrically connected by the port EN of resistance R1 and power supply U1, and the port EN of power supply U1 is electrically connected level and prolongs When conversion module, in the present embodiment, the port VIN of power supply U1 is also electrically connected the port GND1 of power supply U1, in particular, electric The port VIN of source U1 and the port GND1 of power supply U1 are electrically connected by capacitor C5 and capacitor C6, while capacitor C5 and capacitor C6 Between it is parallel with one another.

Power supply U1 further includes that N number of port VO, wherein N >=1 and N are integer, and the size of N is by the circuit that specifically needs to connect Quantity is determined, so that the circuit quantity that this power module can connect according to specific needs is specifically reduced or is extended, into And more there is practicability.

Each port VO of power supply U1 passes through two capacitors parallel with one another and the port GND2 of power supply U1 is electrically connected, The port GND1 of power supply U1 is electrically connected with the port GND2 of power supply U1 by resistance R11 simultaneously.

In the present embodiment, in particular, N is selected as 2, that is to say, that power supply U1 includes 2 ports VO, the i.e. end VO1 Mouth and the port VO2, wherein the port VO1 of power supply U1 is electrically connected power supply U1's by capacitor C1 parallel with one another and capacitor C2 The port GND2, the port VO2 of power supply U1 are electrically connected the end GND2 of power supply U1 by capacitor C3 parallel with one another and capacitor C4 Mouthful.Similarly, when the circuit quantity that power supply U1 needs to connect is 5, then N is selected as 5 at this time, that is to say, that power supply U1 includes 5 A port VO, the i.e. port VO1, the port VO2, the port VO3, the port VO4 and the port VO5, and this 5 ports will all pass through two The port GND2 of capacitor parallel with one another and power supply U1 are electrically connected, thus power supply U1 can not only preferably with each connection It keeps being closely connected between circuit, while also can mutually control each other.

The wherein control principle of power module are as follows: the port EN of power supply U1 connects low and high level, so as to preferably control Modular power source processed exports on or off, and then the power down of end control system or completion rear class system after protection may be implemented Hard reset function.

The under-voltage over-voltage control module of embodiment 2

With reference to Fig. 3, this implementation provides a kind of remote sensing monitoring control circuit, and under-voltage over-voltage control module includes that voltage compares Device U2, wherein the port VIN of power supply U1 is electrically connected the port VCC of voltage comparator U2 by resistance R6, while voltage compares The port VCC of device U2 is electrically connected the port UVV of voltage comparator U2 by resistance R6 and resistance R8, passes through resistance R6, resistance R8 and resistance R9 is electrically connected the port OVV of voltage comparator U2, electrical by resistance R6, resistance R8, resistance R9 and resistance R10 The port GND for connecting voltage comparator U2, is wherein serially connected between resistance R6, resistance R8, resistance R9 and resistance R10, simultaneously Resistance R6, resistance R8, resistance R9 and resistance R10 are parallel with zener diode D1, and zener diode D1 is parallel with capacitor C8, In the present embodiment, resistance R6, resistance R8, resistance R9, resistance R10, zener diode D1 and capacitor C8 are with power supply U1's The port GND1 is directly electrically connected.

In the present embodiment, voltage comparator U2Port andPort with level time-delay conversion module and hardware Reseting module is directly electrically connected, while both can be straight between the port GND of voltage comparator U2 and the port GND1 of power supply U1 Electric connection is connect, it can also be mutually isolated each other.

The wherein control principle of under-voltage over-voltage control module are as follows: when there is a situation where over-voltages, under-voltage for the port VIN of power supply U1 When, the port OVV and the port UVV of voltage comparator U2 will export low level, and then level time-delay conversion module will start to carry out Work.

3 level time-delay conversion module of embodiment

With reference to Fig. 4, this implementation provides a kind of remote sensing monitoring control circuit, and level time-delay conversion module includes transistor S1 With transistor S2, wherein transistor S1 is PNP transistor, and transistor S2 is NPN transistor, the base stage and voltage ratio of transistor S1 Compared with device U2'sPort andPort is electrically connected by resistance R3, while the emitter of transistor S1 is directly electrically connected electricity The port VIN of source U1, and the base stage of transistor S1 then passes through the port VIN that resistance R2 is electrically connected power supply U1, transistor S1's Collector is electrically connected by the port GND1 of capacitor C7 and power supply U1.

In the present embodiment, the collector of the base stage of transistor S2 and transistor S1 pass through resistance R4 electric connection and crystalline substance The emitter of body pipe S2 is electrically connected by resistance R4 and resistance R5, and the collector of transistor S2 is electrically connected the EN of power supply U1 Port, while the emitter of transistor S2 is directly electrically connected the port GND1 of power supply U1, and the emitter of transistor S2 passes through Capacitor C7 is electrically connected the collector of transistor S1, wherein parallel with one another between capacitor C7 and resistance R5.

The wherein control principle of level time-delay conversion module are as follows: when signal is in low level at resistance R3, PNP transistor S1 will be connected, and charge for capacitor C7, and when the voltage of capacitor C7 increases to certain threshold value, " certain threshold value " herein is represented Set numerical value in advance, and do not have certain representativeness, only a kind of noun references, NPN transistor S2 will be connected, thus Reduce the level of the port EN of power supply U1.

When the port the VIN power loss of power supply U1, due to being stored with certain charge inside capacitor C7, herein " one It is fixed " numerical value set in advance is represented, without certain representativeness, only a kind of noun references, thus inside capacitor C7 Charge gives sustainable supply to transistor S2, while the level of the port EN of power supply U1 will always be in low level state, until electricity When holding the voltage drop at C7 as low as certain threshold value, " certain threshold value " herein represents numerical value set in advance, and does not have one Fixed representativeness, only a kind of noun references, transistor S2 will be turned off, and the level of the port EN of power supply U1 will then revert to normally State.

When due to the level of the port EN of power supply U1 being low level, locating for level time by resistance R4, resistance R5 and Capacitor C7 co- controlling, so as to adjust the parameter size of resistance R4, resistance R5 and capacitor C7, by the EN of adjustable power supply U1 The low level duration of port.Simultaneously when the level of the port EN of power supply U1 is low level, the output of power module will stop.

4 hardware reset module of embodiment

With reference to Fig. 5 and Fig. 6, this implementation provides a kind of remote sensing monitoring control circuit, hardware reset module include optocoupler every From hardware cold reset module and hardware reset module, both light-coupled isolation hardware cold reset module and hardware reset module each other it Between be electrically connected with each other, wherein light-coupled isolation hardware cold reset module includes photo-coupler OC1, and the anode of photo-coupler OC1 is logical The port VCC for crossing resistance R7 and voltage comparator U2 is electrically connected, and cathode is directly electrically connected with hardware reset module, current collection Pole is with voltage comparator U2'sPort andPort is electrically connected, and the port GND1 of transmitter and power supply U1 are electrically connected.

Wherein isolation control B module includes the port RESET, and the port RESET is electrically connected voltage comparator U2'sPort WithPort, in the present embodiment, in particular, the port RESET includes the port RESET1 and the port RESET2, the end RESET1 It mouthful is electrically connected with the cathode of photo-coupler OC1, the collector of the port RESET2 and photo-coupler OC1, voltage comparator U2Port andPort, resistance R3 are electrically connected.

The wherein control principle of hardware reset module are as follows: when the level of the port RESET is low level, photo-coupler OC1 Emitter will be connected, the level of the port EN of power supply U1 will be equal with the level of the port GND1 of power supply U1 at this time, so as to With end control system IO control interface isolated from power after realization.

When the level of the port RESET is low level, the level of the port EN of power supply U1 will be directly dragged down, so that level prolongs When conversion module will start to work, and then the power down hard reset function of rear end control system IO control interface power supply will be able to It realizes.

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Therefore, below to providing in the accompanying drawings The detailed description of the embodiments of the present invention be not intended to limit the range of claimed invention, but only Indicate the selected embodiment of the utility model.Based on the embodiments of the present invention, those of ordinary skill in the art are not having Every other embodiment obtained under the premise of creative work is made, is fallen within the protection scope of the utility model.

Claims (9)

1. a kind of remote sensing monitoring control circuit, which is characterized in that including power module, under-voltage over-voltage control module, level delay Conversion module and hardware cold reset module, the level time-delay conversion module parallel with one another and hardware cold reset module electrically connect Under-voltage over-voltage control module is connect, the under-voltage over-voltage control module is electrically connected power module.

2. a kind of remote sensing monitoring control circuit according to claim 1, which is characterized in that the power module includes power supply The port VIN of U1, the power supply U1 is electrically connected the port EN of power supply U1 by resistance R1, by capacitor C5 parallel with one another and Capacitor C6 is electrically connected the port GND1 of power supply U1, and the port EN of the power supply U1 is electrically connected level time-delay conversion module.

3. a kind of remote sensing monitoring control circuit according to claim 2, which is characterized in that the power supply U1 includes N number of VO Port, N >=1 and N are integer, while the port VO of the power supply U1 is electrically connected electricity by two capacitors parallel with one another The port GND1 of the port GND2 of source U1, the power supply U1 is electrically connected with the port GND2 by resistance R11.

4. a kind of remote sensing monitoring control circuit according to claim 1 or 3, which is characterized in that the under-voltage over-voltage control Module includes voltage comparator U2, and the port VCC of the voltage comparator U2 is electrically connected voltage by resistance R6 and resistance R8 The port UVV of comparator U2 is electrically connected the port OVV of voltage comparator U2 by resistance R6, resistance R8 and resistance R9, passed through Resistance R6, resistance R8, resistance R9 and resistance R10 are electrically connected the port GND of voltage comparator U2, wherein the resistance R6, electricity Resistance R8, resistance R9 and resistance R10 are parallel with zener diode D1, and the zener diode D1 is parallel with capacitor C8, while described Voltage comparator U2'sPort andPort is electrically connected with level time-delay conversion module.

5. a kind of remote sensing monitoring control circuit according to claim 4, which is characterized in that the level time-delay conversion module Base stage and voltage comparator U2 including transistor S1 and transistor S2, the transistor S1Port andPort passes through Resistance R3 is electrically connected, is electrically connected with the emitter of transistor S1 by resistance R2, the collector and crystalline substance of the transistor S1 The base stage of body pipe S2 is electrically connected by resistance R4 electric connection, with the emitter of transistor S2 by capacitor C7, wherein described Capacitor C7 is parallel with resistance R5, and the collector of the transistor S2 is electrically connected the port EN of power supply U1.

6. a kind of remote sensing monitoring control circuit according to claim 5, which is characterized in that the hardware cold reset module packet Light-coupled isolation hardware cold reset module and hardware reset module are included, the light-coupled isolation hardware cold reset module is electrically connected hardware Reseting module.

7. a kind of remote sensing monitoring control circuit according to claim 6, which is characterized in that the light-coupled isolation hardware is cold multiple Position module includes photo-coupler OC1, and the anode of the photo-coupler OC1 is electrically connected voltage comparator U2's by resistance R7 The port VCC, cathode and hardware reset module are electrically connected, collector is electrically connected voltage comparator U2'sPort andEnd Mouth, transmitter are electrically connected the port GND1 of the power supply U1.

8. a kind of remote sensing monitoring control circuit according to claim 6, which is characterized in that the hardware reset module includes The port RESET, the port RESET are electrically connected voltage comparator U2'sPort andPort.

9. a kind of remote sensing monitoring control circuit according to claim 8, which is characterized in that the port RESET includes The cathode of the port RESET1 and the port RESET2, the port RESET1 and photo-coupler OC1 are electrically connected, the end RESET2 The collector of mouth and photo-coupler OC1 is electrically connected.