Movable property seizure status monitoring system

Abstract

A movable property seizure status monitoring system provided by the present invention comprises an installation box, a monitoring unit arranged on the installation box and a remote monitoring unit; the monitoring unit comprises a power supply module and a monitoring module; the monitoring module comprises a control circuit, a 3D gyroscope, a GPS positioning circuit, an audible and visual alarm and an active electronic tag; the power supply module comprises a battery unit with redundant power supply, a power supply control circuit, a solar panel and a solar power supply conversion circuit; there are two monitoring modes in the monitoring process, thereby ensuring accurate tracking of movable property when it is used illegally, and being able to effectively ensure the continuity of tracking, and having strong endurance during the monitoring process, thereby ensuring the stability of the entire system, and being able to issue a timely alarm when the monitoring module is dismantled.

Description

Technical Field

[0001] The present invention relates to a monitoring system, and in particular to a movable property seizure status monitoring system. Background Art

[0002] With the development of social economy, the number of lawsuits involving property has increased. In property lawsuits, it is often necessary to preserve the target object. For real estate such as houses, it is easy to monitor after preservation, and it is difficult for the property owner to use it illegally during preservation. However, for large movable property such as vehicles, due to their high mobility, they may still be illegally used even during property preservation, thus failing to ensure fairness and justice in the litigation process.

[0003] Although monitoring measures are also taken for the preserved movable property, such as manual guarding, this method is the most primitive, but it often has loopholes and wastes manpower; of course, there is also unattended monitoring, that is, video monitoring, but in the prior art, video monitoring is often affected by multiple factors such as the environment and shooting angle, making it difficult to obtain accurate image information, and there will be occlusions, and the movable property will still be illegally disposed of after the video is blocked, and it is difficult to track; in the prior art, GPS tracking systems are also installed on movable property, but the existing tracking systems have the following defects: First, the GPS tracker is easily affected by the signal, and there is a tracking interruption; second, the GPS tracker is affected by the battery life, it is difficult to ensure continuous operation, and the stability is poor; third, the GPS tracker is easily dismantled and cannot be alarmed.

[0004] Therefore, in order to solve the above technical problems, a new technical means is proposed. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a movable property seizure status monitoring system, which has two monitoring modes during the monitoring process, so as to ensure accurate tracking of movable property when it is used illegally, and can effectively ensure the continuity of tracking, and has strong endurance during the monitoring process, so as to ensure the stability of the entire system, and can issue timely alarms when the monitoring module is dismantled.

[0006] The present invention provides a movable property seizure status monitoring system, comprising an installation box, a monitoring unit arranged in the installation box, and a remote monitoring unit;

[0007] The monitoring unit includes a power supply module and a monitoring module;

[0008] The monitoring module includes a control circuit, a 3D gyroscope, a GPS positioning circuit, an audible and visual alarm, and an active electronic tag;

[0009] The input end of the control circuit is connected to the output end of the 3D gyroscope and the GPS positioning circuit, the control circuit is connected to the remote monitoring unit through the mobile communication module, and the control output end of the control circuit is connected to the input end of the sound and light alarm;

[0010] The power supply module includes a battery unit with redundant power supply, a power supply control circuit, a solar panel and a solar power supply conversion circuit;

[0011] The input end of the power supply control circuit is connected to the output end of the battery unit, the control input end of the power supply control circuit is connected to the control output end of the control circuit, the output end of the power supply control circuit is connected to the power supply end of the active electronic tag, the GPS positioning circuit and the mobile communication module, and the detection output end of the power supply control circuit is connected to the input end of the control circuit;

[0012] The output end of the solar panel is connected to the input end of the solar power conversion circuit, the output end of the solar power conversion circuit is connected to the input end of the battery unit, and the output end of the battery unit is connected to the input end of the control circuit, the gyroscope and the power supply control circuit.

[0013] Further, the power supply control circuit includes a resistor R1, a resistor R2, a resistor R3, a resistor RT, a comparator U1, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R21, a resistor R22, a transistor Q3, a transistor Q2, an optocoupler G1, and a PMOS tube Q1;

[0014] The source of the PMOS tube Q1 serves as the input end of the power supply control circuit, the drain of the PMOS tube Q1 serves as the output end of the power supply control circuit, one end of the resistor R1 is connected to the source of the PMOS tube Q1, the other end of the resistor R2 is grounded through the resistor R2, the common connection point of the resistor R1 and the resistor R2 is connected to the inverting end of the comparator U1, one end of the resistor R3 is connected to the source of the PMOS tube Q1, the other end of the resistor R3 is grounded through the resistor RT, the common connection point of the resistor RT and the resistor R3 is connected to the inverting end of the comparator U1, the output end of the comparator U1 is connected to the base of the transistor Q3 through the resistor R4, the base of the transistor Q3 is grounded through the resistor R8, the emitter of the transistor Q3 is grounded, and the collector of the transistor Q3 is connected to the base of the transistor Q2 , the base of transistor Q2 is connected to the source of PMOS tube Q1 through resistor R5, the gate of PMOS tube Q1 is connected to the collector of transistor Q2, the gate of PMOS tube Q1 is connected to the source of PMOS tube Q1 through resistor R6, the emitter of transistor Q2 is grounded through resistor R7, the base of transistor Q3 is connected to the collector of phototransistor of optocoupler G1, the emitter of phototransistor of optocoupler G1 is grounded, the positive electrode of light-emitting diode of optocoupler G1 is connected to one end of resistor R21, the other end of resistor R21 is used as the control input end of power supply control circuit, the negative electrode of light-emitting diode of optocoupler G1 is grounded, one end of resistor R22 is connected to the drain of PMOS tube Q1, and the other end of resistor R22 is used as the detection output end of power supply control circuit;

[0015] The installation box is provided with a plurality of resistance strain gauges, and the plurality of resistance strain gauges are connected in series, and the resistance RT is the equivalent resistance of the plurality of resistance strain gauges connected in series.

[0016] Furthermore, the lithium battery unit includes a main power supply battery, a backup battery, and a switching control circuit for switching power supply between the main power supply battery and the backup battery;

[0017] The main power supply battery and the backup battery are respectively provided with charging control circuits with the same circuit structure;

[0018] The positive pole of the main power supply battery is connected to the first input end of the switching control circuit, and the positive pole of the backup battery is connected to the second output end of the switching control circuit. The output end of the switching control circuit supplies power to the control circuit, the gyroscope, the GPS positioning circuit and the input end of the power supply control circuit. The control input end of the switching control circuit is connected to the control output end of the charging control circuit of the main power supply battery.

[0019] Further, the switching control circuit includes an automatic reset button switch S1, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a resistor R15, a resistor R20, a thyristor Q4, a PMOS tube Q6, a transistor Q5, a transistor Q6 and a transistor Q7;

[0020] The positive electrode of the thyristor Q4 serves as the first input terminal of the switching control circuit. The positive electrode of the thyristor Q4 is connected to the control electrode of the thyristor Q4 in series through the automatic reset button switch S1 and the resistor R20. The emitter of the transistor Q5 is connected to the positive electrode of the thyristor Q4. The collector of the transistor Q5 is connected to the control electrode of the thyristor Q4 through the resistor R10. The base of the transistor Q5 is connected to one end of the resistor R9. The other end of the resistor R9 serves as the control input terminal of the switching control circuit.

[0021] The source of the PMOS tube Q6 serves as the second input terminal of the switching control circuit, the drain of the PMOS tube Q6 is connected to the cathode of the thyristor Q4, and the cathode of the thyristor Q4 serves as the output terminal of the switching control circuit;

[0022] The gate of the PMOS tube Q6 is connected to the collector of the transistor Q8, the gate of the PMOS tube Q6 is connected to the source of the PMOS tube Q6 through a resistor R13, the emitter of the transistor Q8 is grounded through a resistor R14, the base of the transistor Q8 is connected to the source of the PMOS tube Q6 through a resistor R12, the base of the transistor Q8 is connected to the collector of the transistor Q7, the emitter of the transistor Q7 is grounded, the base of the transistor Q7 is grounded through a resistor R15, and the base of the transistor Q7 is connected to the collector of the transistor Q5 through a resistor R11; wherein the transistor Q5 is a P-type transistor.

[0023] Further, the charging control circuit includes capacitor C1, capacitor C2, capacitor C3, capacitor C4, resistor R16, resistor R17, resistor R18, resistor R19, PMOS tube Q1, diode D2, voltage regulator tube D1, inductor L1, indicator light LED1, indicator light LED2 and chip U2;

[0024] Chip U2 is a CN3763 chip. Pin 10 of chip U2 is connected to the gate of PMOS tube Q1. The source of PMOS tube Q1 is used as the input end of the charging control circuit. The source of PMOS tube Q1 is grounded through capacitor C1. The source of PMOS tube Q1 is connected to pin 1 of chip U2 through capacitor C2. The source of PMOS tube Q1 is connected to the positive electrodes of indicator light LED1 and indicator light LED2 through resistor R16 respectively. The negative electrode of indicator light LED1 is connected to pin 4 of chip U2. The negative electrode of indicator light LED2 is connected to pin 3 of chip U2. Pin 5 of chip U2 is connected to one end of resistor R17. The other end of resistor R17 is grounded through capacitor C3. Pin 2 of chip U2 is grounded. The drain of the PMOS tube Q1 is connected to the positive electrode of the diode D2, the negative electrode of the diode D2 is connected to one end of the resistor R19 through the inductor L1, the other end of the resistor R19 is grounded through the capacitor C4, the 7th pin of the chip U2 is connected to the common connection point of the resistor R19 and the capacitor C4, the common connection point of the resistor R19 and the capacitor C4 serves as the output end of the charging control circuit, the negative electrode of the diode D2 is connected to the negative electrode of the voltage regulator tube D1, the positive electrode of the voltage regulator tube D1 is grounded, the 8th pin of the chip U2 is connected to the common connection point between the inductor L1 and the resistor R19, the 6th pin of the chip U2 is connected to the common connection point of the resistor R19 and the capacitor C4 through the resistor R18, and the negative electrode of the diode D2 serves as the control output end of the charging control circuit.

[0025] Furthermore, the remote monitoring unit includes a monitoring host, a touch display, an audible and visual alarm, and an RFID reader / writer;

[0026] The monitoring host is connected to the touch display and the sound and light alarm, the RFID reader is connected to the monitoring host for communication, and the monitoring host is connected to the control circuit for communication via a mobile communication module.

[0027] Furthermore, an adhesive layer is fixedly provided on the outer side of the bottom of the installation box.

[0028] Furthermore, a battery panel installation area and a label installation area are arranged on the outer surface of the box cover of the installation box, the solar panel is arranged in the battery panel installation area, and the active electronic label is arranged in the label installation area.

[0029] Furthermore, the control circuit is a STC12C5A60S2 chip.

[0030] The beneficial effects of the present invention are as follows: through the present invention, there are two monitoring modes in the monitoring process, thereby ensuring accurate tracking of movable property when it is used illegally, and can effectively ensure the continuity of tracking, and the endurance during the monitoring process is strong, thereby ensuring the stability of the entire system, and can issue a timely alarm when the monitoring module is dismantled. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0032] Figure 1 It is a schematic diagram of the structure of the present invention.

[0033] Figure 2 It is a schematic diagram of the power supply control circuit of the present invention.

[0034] Figure 3 It is a schematic diagram of the switching control circuit of the present invention.

[0035] Figure 4 It is a schematic diagram of the charging control circuit of the present invention.

[0036] Figure 5 It is a schematic diagram of the structure of the installation box of the present invention. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0038] The present invention provides a movable property seizure status monitoring system, comprising an installation box 1, a monitoring unit arranged in the installation box, and a remote monitoring unit;

[0039] The monitoring unit includes a power supply module and a monitoring module 6;

[0040] The monitoring module includes a control circuit, a 3D gyroscope, a GPS positioning circuit, an audible and visual alarm 7 and an active electronic tag 3;

[0041] The input end of the control circuit is connected to the output end of the 3D gyroscope and the GPS positioning circuit, the control circuit is connected to the remote monitoring unit through the mobile communication module, and the control output end of the control circuit is connected to the input end of the sound and light alarm;

[0042] The power supply module includes a battery unit with redundant power supply, a power supply control circuit, a solar panel 2 and a solar power supply conversion circuit; wherein the solar power supply conversion circuit is a prior art and is used to stabilize the voltage of the electric energy output by the solar panel;

[0043] The input end of the power supply control circuit is connected to the output end of the battery unit, the control input end of the power supply control circuit is connected to the control output end of the control circuit, the output end of the power supply control circuit is connected to the power supply end of the active electronic tag, the GPS positioning circuit and the mobile communication module, and the detection output end of the power supply control circuit is connected to the input end of the control circuit;

[0044] The output end of the solar panel is connected to the input end of the solar power conversion circuit, the output end of the solar power conversion circuit is connected to the input end of the battery unit, and the output end of the battery unit is connected to the input end of the control circuit, the gyroscope and the power supply control circuit. The control circuit adopts the STC12C5A60S2 chip, and of course other existing control chips can also be used. These chips are all existing, and they all have product specifications when leaving the factory to explain their pin functions and the construction of peripheral circuits. Those skilled in the art can build circuits according to their instructions. GPS positioning circuits and 3D gyroscopes are also existing technologies and can be directly purchased on the market. They are not described in detail here. The mobile communication module adopts the existing 4G or 5G communication module. Through the present invention, there are two monitoring modes in the monitoring process, so as to ensure that the movable property is accurately tracked when it is illegally used, and can effectively ensure the continuity of tracking, and the endurance during the monitoring process is strong, so as to ensure the stability of the entire system, and can give timely alarms when the monitoring module is dismantled.

[0045] In this embodiment, the power supply control circuit includes a resistor R1, a resistor R2, a resistor R3, a resistor RT, a comparator U1, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R21, a resistor R22, a transistor Q3, a transistor Q2, an optocoupler G1, and a PMOS tube Q1;

[0046] The source of the PMOS tube Q1 serves as the input end of the power supply control circuit, the drain of the PMOS tube Q1 serves as the output end of the power supply control circuit, one end of the resistor R1 is connected to the source of the PMOS tube Q1, the other end of the resistor R2 is grounded through the resistor R2, the common connection point of the resistor R1 and the resistor R2 is connected to the inverting end of the comparator U1, one end of the resistor R3 is connected to the source of the PMOS tube Q1, the other end of the resistor R3 is grounded through the resistor RT, the common connection point of the resistor RT and the resistor R3 is connected to the inverting end of the comparator U1, the output end of the comparator U1 is connected to the base of the transistor Q3 through the resistor R4, the base of the transistor Q3 is grounded through the resistor R8, the emitter of the transistor Q3 is grounded, and the collector of the transistor Q3 is connected to the base of the transistor Q2 , the base of transistor Q2 is connected to the source of PMOS tube Q1 through resistor R5, the gate of PMOS tube Q1 is connected to the collector of transistor Q2, the gate of PMOS tube Q1 is connected to the source of PMOS tube Q1 through resistor R6, the emitter of transistor Q2 is grounded through resistor R7, the base of transistor Q3 is connected to the collector of phototransistor of optocoupler G1, the emitter of phototransistor of optocoupler G1 is grounded, the positive electrode of light-emitting diode of optocoupler G1 is connected to one end of resistor R21, the other end of resistor R21 is used as the control input end of power supply control circuit, the negative electrode of light-emitting diode of optocoupler G1 is grounded, one end of resistor R22 is connected to the drain of PMOS tube Q1, and the other end of resistor R22 is used as the detection output end of power supply control circuit;

[0047] Among them, the installation box is provided with multiple resistance strain gauges 5, and the multiple resistance strain gauges are connected in series, and the resistance RT is the equivalent resistance of the multiple resistance strain gauges connected in series, due to the electronic tag; wherein, the power supply control circuit is a wake-up circuit, which is used to wake up the active electronic tag, GPS positioning circuit and mobile communication circuit to enter the working state. Since these circuits are always transmitting and receiving signals during the working process, their energy consumption is huge. Therefore, through the above structure, it works when there is a possibility that the movable property is illegally moved, thereby saving electricity and extending the battery life.

[0048] In this embodiment, the lithium battery unit includes a main power supply battery, a backup battery, and a switching control circuit for switching power supply between the main power supply battery and the backup battery;

[0049] The main power supply battery and the backup battery are respectively provided with charging control circuits with the same circuit structure;

[0050] The positive electrode of the main power supply battery is connected to the first input end of the switching control circuit, and the positive electrode of the backup battery is connected to the second output end of the switching control circuit. The output end of the switching control circuit supplies power to the control circuit, the gyroscope, the GPS positioning circuit and the input end of the power supply control circuit. The control input end of the switching control circuit is connected to the control output end of the charging control circuit of the main power supply battery. By alternating power supply between the main power supply battery and the backup battery, on the one hand, the battery life is ensured, and on the other hand, it can effectively prevent the battery from being over-discharged and extend the battery life.

[0051] In this embodiment, the switching control circuit includes an automatic reset button switch S1, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a resistor R15, a resistor R20, a thyristor Q4, a PMOS tube Q6, a transistor Q5, a transistor Q6 and a transistor Q7;

[0052] The positive electrode of the thyristor Q4 serves as the first input terminal of the switching control circuit. The positive electrode of the thyristor Q4 is connected to the control electrode of the thyristor Q4 in series through the automatic reset button switch S1 and the resistor R20. The emitter of the transistor Q5 is connected to the positive electrode of the thyristor Q4. The collector of the transistor Q5 is connected to the control electrode of the thyristor Q4 through the resistor R10. The base of the transistor Q5 is connected to one end of the resistor R9. The other end of the resistor R9 serves as the control input terminal of the switching control circuit.

[0053] The source of the PMOS tube Q6 serves as the second input terminal of the switching control circuit, the drain of the PMOS tube Q6 is connected to the cathode of the thyristor Q4, and the cathode of the thyristor Q4 serves as the output terminal of the switching control circuit;

[0054] The gate of the PMOS tube Q6 is connected to the collector of the transistor Q8, the gate of the PMOS tube Q6 is connected to the source of the PMOS tube Q6 through a resistor R13, the emitter of the transistor Q8 is grounded through a resistor R14, the base of the transistor Q8 is connected to the source of the PMOS tube Q6 through a resistor R12, the base of the transistor Q8 is connected to the collector of the transistor Q7, the emitter of the transistor Q7 is grounded, the base of the transistor Q7 is grounded through a resistor R15, and the base of the transistor Q7 is connected to the collector of the transistor Q5 through a resistor R11; wherein the transistor Q5 is a P-type transistor.

[0055] In this embodiment, the charging control circuit includes capacitor C1, capacitor C2, capacitor C3, capacitor C4, resistor R16, resistor R17, resistor R18, resistor R19, PMOS tube Q1, diode D2, voltage regulator tube D1, inductor L1, indicator LED1, indicator LED2 and chip U2;

[0056] The chip U2 is a CN3763 chip. The 10th pin of the chip U2 is connected to the gate of the PMOS tube Q1. The source of the PMOS tube Q1 is used as the input end of the charging control circuit. The source of the PMOS tube Q1 is grounded through the capacitor C1. The source of the PMOS tube Q1 is connected to the 1st pin of the chip U2 through the capacitor C2. The source of the PMOS tube Q1 is connected to the positive poles of the indicator light LED1 and the indicator light LED2 through the resistor R16. The negative pole of the indicator light LED1 is connected to the 4th pin of the chip U2. The negative pole of the indicator light LED2 is connected to the 3rd pin of the chip U2. The 5th pin of the chip U2 is connected to one end of the resistor R17. The other end of the resistor R17 is grounded through the capacitor C3. The 2nd pin of the chip U2 is grounded. The drain of the PMOS tube Q1 is connected to the positive pole of the diode D2. The negative pole of the diode D2 is connected to one end of the resistor R19 through the inductor L1. The other end of the resistor R19 is grounded through the capacitor C4. The 7th pin of the chip U2 is connected to the resistor The common connection point of R19 and capacitor C4, the common connection point of resistor R19 and capacitor C4 serves as the output end of the charging control circuit, the cathode of diode D2 is connected to the cathode of voltage regulator tube D1, the anode of voltage regulator tube D1 is grounded, the 8-pin of chip U2 is connected to the common connection point between inductor L1 and resistor R19, the 6-pin of chip U2 is connected to the common connection point of resistor R19 and capacitor C4 through resistor R18, the cathode of diode D2 serves as the control output end of the charging control circuit, wherein chip U2 can monitor the voltage of the battery, when the battery voltage is greater than the set value, PMOS tube Q1 is cut off and does not charge, when the battery voltage is less than the set value, PMOS tube is turned on and the battery is charged, of course, for the convenience of use, a charging interface can also be set to connect with the input end of the charging control circuit, when there is continuous rainy weather and insufficient sunlight, the battery is manually charged at each set time, such as charging once every 48 hours.

[0057] In this embodiment, the remote monitoring unit includes a monitoring host, a touch display, an audible and visual alarm, and an RFID reader;

[0058] The monitoring host is connected to the touch display and the sound and light alarm, the RFID reader is connected to the monitoring host for communication, and the monitoring host is connected to the control circuit for communication via the mobile communication module. For vehicle-type movable property, the RFID reader is an RFID reader installed on the road network.

[0059] In this embodiment, an adhesive layer 4 is fixedly provided on the outer side of the bottom of the installation box, and the adhesive layer facilitates the fixation between the installation box and the movable property.

[0060] In this embodiment, the outer surface of the box cover of the installation box is provided with a battery panel installation area and a label installation area. The solar panel is arranged in the battery panel installation area, and the active electronic tag is arranged in the label installation area. The above structure is convenient for use.

[0061] The principle of the present invention is further described below, and this principle is only to facilitate the understanding of the present invention by those skilled in the art:

[0062] The reset button switch S1 is a normally open switch, which is turned on when pressed and automatically restored to off when released. Under normal conditions, the comparator U1 outputs a high level, and the control circuit outputs a low level to the resistor R21. After the present invention is installed, the switch S1 is manually pressed to trigger the thyristor Q4 to turn on. At this time, the control circuit, the 3D gyroscope and the comparator U1 enter the working state. When the 3D gyroscope continuously changes its angle, it indicates that the movable is moving. If the output angle of the 3D gyroscope changes instantaneously and then does not change within the set time, it indicates that the movable is touched but not moved. When it is determined that the movable moves, the control circuit outputs a high level to the optical coupler G1 through the resistor R21, the optical coupler G1 is turned on, the transistor Q3 is turned off, the PMOS tube Q1 is turned on, and the GPS positioning circuit, the mobile communication module and the active electronic tag all enter. Working state, the control circuit sends the location signal and movable property movement alarm signal to the monitoring host through the mobile communication module, and the sound and light alarm set in the installation box and the sound and light alarm of the remote monitoring unit both alarm; moreover, the active electronic tag is also in working state, and sends out the information stored in the tag, which includes the name of the movable property and relevant information of preservation. The information is read by the RFID reader / writer set on the road and sent to the monitoring host. The monitoring host performs fitting processing based on the location information of the RFID reader / writer (the RFID reader / writer will mark its location when setting up and write it into the RFID reader / writer. When the RFID reader / writer sends information, it will be accompanied by the location information of the RFID reader / writer) and the location information of the GPS positioning circuit to form accurate movable property movement trajectory information, thereby ensuring the accuracy of tracking.

[0063] When the installation box is illegally dismantled, the resistor R3, the resistor RT and the 3D gyroscope will monitor together. When the box body is directly damaged, the resistance strain gauge will be deformed, the resistance value will increase, the comparator will output a low level, the transistor Q3 will be cut off, Q2 will be turned on, and then the PMOS tube Q1 will be turned on, and the resistor R22 will output a detection signal to the control circuit, indicating that the installation box has been damaged. The control circuit will alarm through the sound and light alarm and upload the alarm information. Here, it should be noted that: as it has been explained above, the control circuit will output the control command through the optocoupler G1 when the 3D gyroscope has a continuous signal output. If the installation box is illegally damaged and the action is not continuous, the 3D gyroscope will fail. The monitoring failure can be effectively prevented by using devices such as the comparator U1.

[0064] Battery switching principle: Under normal conditions, the main power supply battery supplies power. When the main power supply battery is fully charged, the charging control circuit will not operate. Therefore, the PMOS tube Q9 will not be turned on, and the base of the transistor Q5 is at a low level. The transistor Q5 is turned on. At this time, the transistor Q7 will be turned on, the transistor Q8 will be turned off, and the PMOS tube Q6 will be turned off. When the main power supply battery is insufficient, the PMOS tube Q9 of the charging control circuit of the main power supply battery will be turned on. At this time, the cathode of the diode D2 has a voltage output, which is higher than the main power supply battery BAT1. The voltage of the main power supply battery is , the transistor Q5 is turned off, the transistor Q7 is turned off, the transistor Q8 is turned on, and the PMOS tube Q6 is turned on. The backup battery is used for power supply. At this time, the voltage of the backup battery is loaded on the negative electrode of the thyristor Q4, and the voltage of the backup battery is greater than the voltage of the main power supply battery. The thyristor Q4 is turned off. When there is no voltage at the negative electrode of the diode D2 of the charging control circuit of the main power supply battery, it indicates that the charging is completed. At this time, the transistor Q5 is turned on again, which triggers the thyristor Q4 to turn on on the one hand, and turns off the PMOS tube Q6 on the other hand, thereby completing the switching.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A movable property seizure status monitoring system, characterized by: It includes an installation box, a monitoring unit arranged on the installation box, and a remote monitoring unit; The monitoring unit includes a power supply module and a monitoring module; The monitoring module includes a control circuit, a 3D gyroscope, a GPS positioning circuit, an audible and visual alarm, and an active electronic tag; The input end of the control circuit is connected to the output end of the 3D gyroscope and the GPS positioning circuit, the control circuit is connected to the remote monitoring unit through the mobile communication module, and the control output end of the control circuit is connected to the input end of the sound and light alarm; The power supply module includes a battery unit with redundant power supply, a power supply control circuit, a solar panel and a solar power supply conversion circuit; The input end of the power supply control circuit is connected to the output end of the battery unit, the control input end of the power supply control circuit is connected to the control output end of the control circuit, the output end of the power supply control circuit is connected to the power supply end of the active electronic tag, the GPS positioning circuit and the mobile communication module, and the detection output end of the power supply control circuit is connected to the input end of the control circuit; The output end of the solar panel is connected to the input end of the solar power conversion circuit, the output end of the solar power conversion circuit is connected to the input end of the battery unit, and the output end of the battery unit is connected to the input end of the control circuit, the gyroscope and the power supply control circuit; The power supply control circuit includes a resistor R1, a resistor R2, a resistor R3, a resistor RT, a comparator U1, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R21, a resistor R22, a transistor Q3, a transistor Q2, an optical coupler G1, and a PMOS transistor Q1; The source of the PMOS tube Q1 serves as the input end of the power supply control circuit, the drain of the PMOS tube Q1 serves as the output end of the power supply control circuit, one end of the resistor R1 is connected to the source of the PMOS tube Q1, the other end of the resistor R2 is grounded through the resistor R2, the common connection point of the resistor R1 and the resistor R2 is connected to the inverting end of the comparator U1, one end of the resistor R3 is connected to the source of the PMOS tube Q1, the other end of the resistor R3 is grounded through the resistor RT, the common connection point of the resistor RT and the resistor R3 is connected to the inverting end of the comparator U1, the output end of the comparator U1 is connected to the base of the transistor Q3 through the resistor R4, the base of the transistor Q3 is grounded through the resistor R8, the emitter of the transistor Q3 is grounded, and the collector of the transistor Q3 is connected to the base of the transistor Q2 , the base of transistor Q2 is connected to the source of PMOS tube Q1 through resistor R5, the gate of PMOS tube Q1 is connected to the collector of transistor Q2, the gate of PMOS tube Q1 is connected to the source of PMOS tube Q1 through resistor R6, the emitter of transistor Q2 is grounded through resistor R7, the base of transistor Q3 is connected to the collector of phototransistor of optocoupler G1, the emitter of phototransistor of optocoupler G1 is grounded, the positive electrode of light-emitting diode of optocoupler G1 is connected to one end of resistor R21, the other end of resistor R21 is used as the control input end of power supply control circuit, the negative electrode of light-emitting diode of optocoupler G1 is grounded, one end of resistor R22 is connected to the drain of PMOS tube Q1, and the other end of resistor R22 is used as the detection output end of power supply control circuit; The installation box is provided with a plurality of resistance strain gauges, and the plurality of resistance strain gauges are connected in series, and the resistance RT is the equivalent resistance of the plurality of resistance strain gauges connected in series; The remote monitoring unit includes a monitoring host, a touch display, an audible and visual alarm, and an RFID reader / writer; The monitoring host is connected to the touch display and the sound and light alarm, the RFID reader is connected to the monitoring host for communication, and the monitoring host is connected to the control circuit for communication via a mobile communication module.

2. The movable property seizure status monitoring system according to claim 1 is characterized by: The battery unit includes a main power supply battery, a backup battery, and a switching control circuit for switching power supply between the main power supply battery and the backup battery; The main power supply battery and the backup battery are respectively provided with charging control circuits with the same circuit structure; The positive pole of the main power supply battery is connected to the first input end of the switching control circuit, and the positive pole of the backup battery is connected to the second output end of the switching control circuit. The output end of the switching control circuit supplies power to the control circuit, the gyroscope, the GPS positioning circuit and the input end of the power supply control circuit. The control input end of the switching control circuit is connected to the control output end of the charging control circuit of the main power supply battery.

3. The movable property seizure status monitoring system according to claim 2 is characterized by: The switching control circuit includes an automatic reset button switch S1, a resistor R9, a resistor R10, a resistor R11, a resistor R12, a resistor R13, a resistor R14, a resistor R15, a resistor R20, a thyristor Q4, a PMOS tube Q6, a transistor Q5, a transistor Q6 and a transistor Q7; The positive electrode of the thyristor Q4 serves as the first input terminal of the switching control circuit. The positive electrode of the thyristor Q4 is connected to the control electrode of the thyristor Q4 in series through the automatic reset button switch S1 and the resistor R20. The emitter of the transistor Q5 is connected to the positive electrode of the thyristor Q4. The collector of the transistor Q5 is connected to the control electrode of the thyristor Q4 through the resistor R10. The base of the transistor Q5 is connected to one end of the resistor R9. The other end of the resistor R9 serves as the control input terminal of the switching control circuit. The source of the PMOS tube Q6 serves as the second input terminal of the switching control circuit, the drain of the PMOS tube Q6 is connected to the cathode of the thyristor Q4, and the cathode of the thyristor Q4 serves as the output terminal of the switching control circuit; The gate of the PMOS tube Q6 is connected to the collector of the transistor Q8, the gate of the PMOS tube Q6 is connected to the source of the PMOS tube Q6 through a resistor R13, the emitter of the transistor Q8 is grounded through a resistor R14, the base of the transistor Q8 is connected to the source of the PMOS tube Q6 through a resistor R12, the base of the transistor Q8 is connected to the collector of the transistor Q7, the emitter of the transistor Q7 is grounded, the base of the transistor Q7 is grounded through a resistor R15, and the base of the transistor Q7 is connected to the collector of the transistor Q5 through a resistor R11; wherein the transistor Q5 is a P-type transistor.

4. The movable property seizure status monitoring system according to claim 2 is characterized by: The charging control circuit includes capacitor C1, capacitor C2, capacitor C3, capacitor C4, resistor R16, resistor R17, resistor R18, resistor R19, PMOS tube Q1, diode D2, voltage regulator tube D1, inductor L1, indicator light LED1, indicator light LED2 and chip U2; Chip U2 is a CN3763 chip. Pin 10 of chip U2 is connected to the gate of PMOS tube Q1. The source of PMOS tube Q1 is used as the input end of the charging control circuit. The source of PMOS tube Q1 is grounded through capacitor C1. The source of PMOS tube Q1 is connected to pin 1 of chip U2 through capacitor C2. The source of PMOS tube Q1 is connected to the positive electrodes of indicator light LED1 and indicator light LED2 through resistor R16 respectively. The negative electrode of indicator light LED1 is connected to pin 4 of chip U2. The negative electrode of indicator light LED2 is connected to pin 3 of chip U2. Pin 5 of chip U2 is connected to one end of resistor R17. The other end of resistor R17 is grounded through capacitor C3. Pin 2 of chip U2 is grounded. The drain of the PMOS tube Q1 is connected to the positive electrode of the diode D2, the negative electrode of the diode D2 is connected to one end of the resistor R19 through the inductor L1, the other end of the resistor R19 is grounded through the capacitor C4, the 7th pin of the chip U2 is connected to the common connection point of the resistor R19 and the capacitor C4, the common connection point of the resistor R19 and the capacitor C4 serves as the output end of the charging control circuit, the negative electrode of the diode D2 is connected to the negative electrode of the voltage regulator tube D1, the positive electrode of the voltage regulator tube D1 is grounded, the 8th pin of the chip U2 is connected to the common connection point between the inductor L1 and the resistor R19, the 6th pin of the chip U2 is connected to the common connection point of the resistor R19 and the capacitor C4 through the resistor R18, and the negative electrode of the diode D2 serves as the control output end of the charging control circuit.

5. The movable property seizure status monitoring system according to claim 1 is characterized by: An adhesive layer is fixedly arranged on the outer side of the bottom of the installation box.

6. The movable property seizure status monitoring system according to claim 1 is characterized by: The outer surface of the box cover of the installation box is provided with a battery panel installation area and a label installation area, the solar cell panel is arranged in the battery panel installation area, and the active electronic label is arranged in the label installation area.

7. The movable property seizure status monitoring system according to claim 1 is characterized by: The control circuit is a STC12C5A60S2 chip.

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