Roadblock state detection circuit and traffic cone

Abstract

The utility model discloses a roadblock state detection circuit and a traffic cone. The state detection circuit is adopted to detect the inclination angle or instantaneous acceleration of a roadblock. When the state detection circuit is in a non-trigger state, the roadblock state detection circuit is in an energy-saving state of partial power supply under the action of the main control circuit. When the state detection circuit is triggered, the roadblock state detection circuit is in a working state, the master control circuit receives a state signal of state change generated by the state detection circuit, and the master control circuit adjusts the first voltage conversion circuit and the second voltage conversion circuit to work. The second voltage signal electric signal of the first voltage conversion circuit is output to the overall situation of the cellular signal transmission circuit, and the third voltage signal of the second voltage conversion circuit is output to the main control circuit and the state detection circuit. The main control circuit and the cellular signal transmission circuit are matched to output the current position information, the power supply state of the circuit is adjusted according to the state of the roadblock, and the effect of prolonging the working time of equipment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of roadblock state detection, in particular to a roadblock state detection circuit and a traffic cone. Background Art

[0002] At present, roadblocks are essential and important traffic safety facilities in scenes such as highways, intersection lanes, road construction areas, dangerous areas, stadiums, and parking lots. Traditional roadblocks cannot be intelligent. For example, when a traffic accident occurs in highways, road construction areas, dangerous areas, stadiums, parking lots and other enclosures, emergency rescue is often required to handle the accident, or when the roadblock is removed manually, there is a situation where the discovery is not timely, which affects the best time for road rescue, prolongs the time for accident handling, and also causes unnecessary property losses; at the same time, common roadblocks use broadcasting to send signals to base stations. When roadblocks are placed in areas with poor signals, when multiple roadblocks work at the same time, interference is easily generated between broadcast signals in the same frequency band, making it difficult to effectively send signals; and because the roadblock will remain in the broadcasting state after being triggered, the overall circuit is in a working state, affecting the standby time. Utility Model Content

[0003] Based on this, it is necessary to propose a roadblock state detection circuit and traffic cone to address the above problems.

[0004] A roadblock state detection circuit, comprising:

[0005] Main control circuit;

[0006] A state detection circuit connected to the main control circuit;

[0007] A cellular signal transmission circuit connected to the main control circuit;

[0008] A first voltage conversion circuit connected to the cellular signal transmission circuit;

[0009] A second voltage conversion circuit connected to the main control circuit;

[0010] The first voltage conversion circuit and the second voltage conversion circuit are independently arranged, and the second voltage conversion circuit is used to provide electric energy for the main control circuit.

[0011] In one embodiment,

[0012] The main control circuit is used to output preset status information to the status detection circuit;

[0013] The state detection circuit is used to receive the preset state information and detect the state information of the roadblock to output a level signal to the main control circuit; the main control circuit is also used to receive the level signal and output a control signal to the cellular signal transmission circuit, and the control signal is used to trigger the cellular signal transmission circuit to output the position information;

[0014] The cellular signal transmission circuit is used to receive the control signal and output the location information of the roadblock to the main control circuit.

[0015] In one embodiment, the main control circuit is further connected to the enable terminal of the first voltage conversion circuit, and is further used to receive the level signal and output an enable signal to the first voltage conversion circuit; and further includes:

[0016] a power supply circuit, the power supply circuit being connected to the first voltage conversion circuit and the second voltage conversion circuit, and the power supply circuit being used to output a first voltage signal;

[0017] The first voltage conversion circuit, whose output end is connected to the power supply end of the cellular signal transmission circuit, is used to receive the enable signal and the first voltage signal, and convert the first voltage signal into a second voltage signal and then output it to the cellular signal transmission circuit;

[0018] The second voltage conversion circuit, whose output ends are connected to the power supply end of the main control circuit and the power supply end of the state detection circuit, is used to receive the first voltage signal, and convert the first voltage signal into a third voltage signal and then output it to the main control circuit and the state detection circuit;

[0019] A voltage sampling circuit, whose input end is connected to the output end of the power supply circuit and whose output end is connected to the main control circuit, is used to receive the first voltage signal and output it to the main control circuit; the main control circuit is also used to receive the signal of the voltage sampling circuit and determine the power of the power supply circuit.

[0020] In one embodiment,

[0021] The first voltage conversion circuit includes: a boost chip, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, a fifteenth capacitor, a thirteenth resistor, a fourteenth resistor and a second inductor;

[0022] Two ends of the coil of the boost chip are connected to one end of the second inductor, and the other end of the second inductor is connected to the output end of the power supply circuit;

[0023] The input end of the boost chip is connected to the output end of the power supply circuit;

[0024] The enable terminal of the boost chip is connected to the output terminal of the main control circuit;

[0025] The output end of the boost chip is connected to the power supply end of the cellular signal transmission circuit;

[0026] The feedback end of the boost chip is connected to one end of the thirteenth resistor and one end of the fourteenth resistor; the other end of the thirteenth resistor is connected to the output end of the boost chip, and the other end of the fourteenth resistor is connected to the ground end of the boost chip and grounded;

[0027] One end of the ninth capacitor is connected to the output end of the boost chip, and the other end of the ninth capacitor is connected to the ground end of the boost chip;

[0028] The fifteenth capacitor and the tenth capacitor are both connected in parallel with the ninth capacitor;

[0029] One end of the seventh capacitor is connected to the input end of the boost chip and the output end of the power supply circuit;

[0030] The eighth capacitor is connected in parallel with the seventh capacitor.

[0031] In one embodiment,

[0032] The second voltage conversion circuit includes: a voltage stabilizing chip, an eleventh capacitor and a twelfth capacitor;

[0033] The voltage sampling circuit comprises: a sixteenth resistor and a seventeenth resistor;

[0034] The input end of the voltage stabilizing chip is connected to the output end of the power supply circuit and one end of the eleventh capacitor; the other end of the eleventh capacitor is grounded;

[0035] The output end of the voltage stabilizing chip is connected to the power supply end of the main control circuit, the power supply end of the state detection circuit and one end of the twelfth capacitor; the other end of the twelfth capacitor is grounded;

[0036] One end of the sixteenth resistor is connected to the output end of the battery, and the other end of the sixteenth resistor is connected to the main control circuit and one end of the seventeenth resistor;

[0037] The other end of the seventeenth resistor is grounded.

[0038] In one embodiment, the power supply circuit comprises:

[0039] A charging management circuit, the input end of which is connected to the solar panel, the output end of which is connected to the input end of the battery, and is used to receive the supply voltage signal and charge the battery;

[0040] The battery, the output end of which is connected to the input end of the first voltage conversion circuit and the input end of the second voltage conversion circuit, is used to receive the supply voltage signal and charge, and output the first voltage signal to the first voltage conversion circuit and the second voltage conversion circuit;

[0041] The battery protection circuit is arranged between the charging management circuit and the battery and is used for protecting the battery.

[0042] In one embodiment,

[0043] The charging management circuit includes: a charging management chip, a fourth capacitor, a fifth capacitor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first MOS tube, a first inductor, a first diode and a second diode;

[0044] The modulator output end of the charging management chip is connected to one end of the fourth capacitor, and the other end of the fourth capacitor is connected to the solar panel;

[0045] The loop compensation input terminal of the charging management chip is connected to one end of the fourth resistor, the other end of the fourth resistor is connected to one end of the fifth capacitor, and the other end of the fifth capacitor is connected to one end of the sixth resistor and grounded;

[0046] The maximum power tracking terminal of the charging management chip is connected to the other end of the sixth resistor and one end of the fifth resistor;

[0047] The external power positive input terminal of the charging management chip is connected to the other end of the fifth resistor and the drain of the first MOS tube; the source of the first MOS tube is connected to the anode of the first diode, the cathode of the first diode is connected to one end of the first inductor, and the other end of the first inductor is connected to one end of the seventh resistor, one end of the eighth resistor and the charging current detection positive input terminal of the charging management chip;

[0048] The gate driving terminal of the charging management chip is connected to the gate of the first MOS tube;

[0049] The charging current detection negative input terminal of the charging management chip is connected to the other end of the seventh resistor and the other end of the eighth resistor;

[0050] The other end of the seventh resistor is connected to the input end of the battery;

[0051] A cathode of the second diode is connected to a cathode of the first diode, and an anode of the second diode is grounded.

[0052] In one embodiment,

[0053] The battery protection circuit includes: a MOS field effect tube, a battery management chip, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a sixth capacitor, and a second MOS tube;

[0054] The first gate of the MOS field effect transistor is connected to the negative power input terminal of the battery management chip;

[0055] The second source of the MOS field effect tube is connected to one end of the ninth resistor and grounded; the other end of the ninth resistor is connected to the current sensing input end of the battery management chip;

[0056] The first gate of the MOS field effect transistor is connected to the discharge control terminal of the battery management chip;

[0057] The second gate of the MOS field effect tube is connected to the charging control terminal of the battery management chip;

[0058] One end of the eleventh resistor is connected to the charging management circuit and the positive electrode of the battery, and the other end of the eleventh resistor is connected to the positive power input terminal of the battery management chip and one end of the sixth capacitor;

[0059] The other end of the sixth capacitor is connected to one end of the tenth resistor and the source of the second MOS tube;

[0060] One end of the twelfth resistor is connected to one end of the eleventh resistor, and the other end of the twelfth resistor is connected to the gate of the second MOS tube;

[0061] The other end of the tenth resistor is grounded;

[0062] The drain of the second MOS tube is connected to the negative electrode of the battery.

[0063] In one embodiment,

[0064] The main control circuit comprises: a main control chip, a thirteenth capacitor and a fourteenth capacitor;

[0065] The cellular signal transmission circuit includes: a wireless transmission and positioning chip;

[0066] The bidirectional data line and clock line of the main control chip are both connected to the state detection circuit; the transmitting end of the main control chip is connected to the receiving end of the wireless transmission and positioning chip, and the receiving end of the main control chip is connected to the transmitting end of the wireless transmission and positioning chip;

[0067] One end of the thirteenth capacitor is connected to the power supply end of the main control chip, and the other end of the thirteenth capacitor is grounded;

[0068] The fourteenth capacitor is connected in parallel with the thirteenth capacitor.

[0069] In one embodiment,

[0070] The state detection circuit comprises: a gyroscope chip, a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor and a third capacitor;

[0071] The clock line of the gyroscope chip is connected to the main control circuit and one end of the second resistor; the chip selection end and the data output end of the gyroscope chip are connected to one end of the first resistor; the bidirectional data line of the gyroscope chip is connected to the main control circuit and one end of the third resistor; the output end of the gyroscope chip is connected to the main control circuit;

[0072] The other end of the second resistor is connected to the output end of the second voltage conversion circuit;

[0073] The other end of the first resistor is connected to the output end of the second voltage conversion circuit;

[0074] The other end of the third resistor is connected to the output end of the second voltage conversion circuit;

[0075] One end of the first capacitor is connected to the first power supply end and the second power supply end of the gyroscope chip, and the other end of the first capacitor is connected to the output end of the second voltage conversion circuit;

[0076] The second capacitor and the third capacitor are both connected in parallel with the first capacitor.

[0077] In one embodiment, the roadblock state detection circuit further includes:

[0078] A manual sleep circuit, whose output end is connected to the wake-up end of the main control circuit, is used to receive a manual signal and output a sleep instruction to the main control circuit;

[0079] The manual sleep circuit comprises: a switch and a fifteenth resistor;

[0080] One end of the switch is connected to one end of the fifteenth resistor and the wake-up end of the main control circuit, and the other end of the switch is grounded;

[0081] The other end of the fifteenth resistor is connected to the output end of the second voltage conversion circuit.

[0082] The present application also provides a traffic cone, comprising: a roadblock and the roadblock state detection circuit as described above, wherein the roadblock state detection circuit is arranged on the roadblock.

[0083] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0084] The main control circuit is connected to the state detection circuit, the cellular signal transmission circuit, the first voltage conversion circuit, and the second voltage conversion circuit, and the state detection circuit is used to detect the inclination angle or instantaneous acceleration of the roadblock. When the state detection circuit is in a non-triggered state, the roadblock state detection circuit is in a partially powered energy-saving state under the action of the main control circuit. When the state detection circuit is triggered, the roadblock state detection circuit is in a working state, and the main control circuit receives a state signal of a state change generated by the state detection circuit. The main control circuit adjusts the operation of the first voltage conversion circuit and the second voltage conversion circuit, so that the second voltage signal electrical signal of the first voltage conversion circuit is output to the global of the cellular signal transmission circuit, and the third voltage signal of the second voltage conversion circuit is output to the main control circuit and the state detection circuit. The main control circuit and the cellular signal transmission circuit cooperate to output the current location information, so as to adjust the power supply state of the circuit according to the state of the roadblock, thereby achieving the effect of extending the working time of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0085] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0086] in:

[0087] Figure 1 is a structural block diagram of a roadblock state detection circuit in one embodiment;

[0088] Figure 2 is a structural block diagram of a roadblock state detection circuit in another embodiment;

[0089] Figure 3 It is a structural block diagram of a roadblock state detection circuit in yet another embodiment;

[0090] Figure 4 is a circuit diagram of a cellular signal transmission circuit and a main control circuit in one embodiment;

[0091] Figure 5 is a circuit diagram of a state detection circuit in one embodiment;

[0092] Figure 6 is a circuit diagram of a charging management circuit and a battery protection circuit in one embodiment;

[0093] Figure 7 is a circuit diagram of a first voltage conversion circuit in one embodiment;

[0094] Figure 8is a circuit diagram of a second voltage conversion circuit in one embodiment;

[0095] Fig. 9 is a circuit diagram of a manual sleep circuit in one embodiment;

[0096] Fig.10 is a circuit diagram of a voltage sampling circuit in one embodiment;

[0097] Fig.11 is a schematic diagram of a traffic cone in one embodiment;

[0098] Fig.12 Schematic diagram of a traffic cone in another embodiment.

[0099] Label name Label name 10 Status detection circuit 20 Main control circuit 30 Cellular signal transmission circuit 40 Power supply circuit 401 Charging management circuit 402 Battery protection circuit 50 First voltage conversion circuit 60 Second voltage conversion circuit 70 Manual sleep circuit 80 Voltage sampling circuit P2 Battery 1 Roadblocks 2 Roadblock status detection circuit DETAILED DESCRIPTION

[0100] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0101] At present, roadblocks are essential and important traffic safety facilities in scenes such as highways, intersection lanes, road construction areas, dangerous areas, stadiums, and parking lots. Traditional roadblocks cannot be intelligent. For example, when a traffic accident occurs in highways, road construction areas, dangerous areas, stadiums, parking lots and other enclosures, emergency rescue is often required to handle the accident, or when the roadblock is removed manually, there is a situation where the accident is not discovered in time, which affects the best time for road rescue, prolongs the time for accident handling, and also causes unnecessary property losses; at the same time, common roadblocks use broadcasting to send signals to base stations. When roadblocks are placed in areas with poor signals, when multiple roadblocks work at the same time, interference is likely to occur between broadcast signals in the same frequency band, making it difficult to effectively send signals; and because the roadblock will remain in a broadcasting state after being triggered, the overall circuit is in a working state, affecting the standby time. In order to solve the above technical problems, the present application provides a roadblock state detection circuit 2, with reference to Figure 1 , is a structural block diagram of a roadblock state detection circuit in an embodiment; refer to Figure 2 , is a structural block diagram of a roadblock state detection circuit in another embodiment; refer to Figure 3 , is a structural block diagram of a roadblock state detection circuit in another embodiment; refer to Figure 4 , which is a circuit diagram of a cellular signal transmission circuit and a main control circuit in one embodiment; refer to Figure 5, is a circuit diagram of a state detection circuit in one embodiment; refer to Figure 6 , which is a circuit diagram of a charging management circuit and a battery protection circuit in one embodiment; refer to Figure 7 , is a circuit diagram of a first voltage conversion circuit in one embodiment; refer to Figure 8 , is a circuit diagram of a second voltage conversion circuit in one embodiment; refer to Fig. 9 , is a circuit diagram of a manual sleep circuit in one embodiment; refer to Fig.10 , which is a circuit diagram of a voltage sampling circuit in one embodiment; refer to Fig.11 , which is a schematic diagram of a traffic cone in one embodiment; refer to Fig.12 , is a schematic diagram of a traffic cone in another embodiment.

[0102] like Figure 1 and 11 As shown, the roadblock state detection circuit 2 includes: a main control circuit 20; a state detection circuit 10, connected to the main control circuit 20; a cellular signal transmission circuit 30, connected to the main control circuit 20; a first voltage conversion circuit 50, connected to the cellular signal transmission circuit 30; a second voltage conversion circuit 60, connected to the main control circuit 20; wherein the first voltage conversion circuit 50 and the second voltage conversion circuit 60 are independently arranged, and the second voltage conversion circuit 60 is used to provide power to the main control circuit 20.

[0103] The present application realizes timely transmission of the location information of the roadblock to the main control circuit 20, and cooperates with the cellular signal transmission circuit 30 to send the location information to the cloud, so as to achieve the purpose of timely rescue; on the other hand, the cellular signal transmission circuit 30 is used to send signals to avoid interference with other broadcast signals, effectively reducing interference. The first voltage conversion circuit is connected to the cellular signal transmission circuit in an independent power supply mode, and cooperates with the state detection circuit 10 to cut off part of the power supply to the main control chip of the main control circuit 20; that is, the main control circuit 20 and the state detection circuit 10 cooperate to realize the first voltage conversion circuit 50 to power the cellular signal transmission circuit 30, so as to achieve energy saving. The present application realizes the independent power supply functions of the cellular signal transmission circuit 30 and the main control circuit 20 respectively through the first voltage conversion circuit 50 and the second voltage conversion circuit 60.

[0104] It can be understood that the main control circuit 20 compares the preset state information burned into the main control circuit 20 according to the state information fed back by the state detection circuit 10. When the preset state information is the same as or different from the state information fed back by the state detection circuit 10, it means that the roadblock is moved, and the connection state of the second voltage conversion circuit 60 and the first voltage conversion circuit 50 is adjusted, that is, the second voltage conversion circuit 60 and the first voltage conversion circuit 50 are connected and incorporated into the overall circuit, that is, the circuit state is adjusted to the overall power supply in operation. On the contrary, the roadblock is moved but not moved, and the main control circuit 20 makes the overall circuit state as the partial power supply in energy saving and dormancy.

[0105] Based on the above, the main control circuit 20 cooperates with the status detection circuit 10 to adjust whether the overall circuit is powered by the overall program, which is a burned-in underlying program. The burned-in underlying program is a common functional setting of a common MUC control unit. No protection is requested here for the program burned in the main control circuit 20.

[0106] The present application adopts the connection between the main control circuit 20 and the state detection circuit 10, the cellular signal transmission circuit 30, the first voltage conversion circuit 50, and the second voltage conversion circuit 60, and adopts the state detection circuit 10 to detect the inclination angle or instantaneous acceleration of the roadblock. When the state detection circuit 10 is in a non-triggered state, the roadblock state detection circuit 2 is in a partially powered energy-saving state under the action of the main control circuit 20. When the state detection circuit 10 is triggered, the roadblock state detection circuit 2 is in a working state, and the main control circuit 20 receives a state signal of a state change generated by the state detection circuit 10. The main control circuit 20 adjusts the operation of the first voltage conversion circuit 50 and the second voltage conversion circuit 60, so that the second voltage signal electrical signal of the first voltage conversion circuit 50 is output to the global of the cellular signal transmission circuit 30, and the third voltage signal of the second voltage conversion circuit 60 is output to the main control circuit 20 and the state detection circuit 10. The main control circuit 20 and the cellular signal transmission circuit 30 cooperate to output the current location information, so as to adjust the power supply state of the circuit according to the state of the roadblock, thereby achieving the effect of extending the working time of the equipment.

[0107] On the other hand, a timer is provided in the main control chip, and the power-saving state is switched after the estimated time from the last time the state detection circuit 10 is triggered.

[0108] Among them, the first voltage conversion circuit 50 and the second voltage conversion circuit 60 can be connected to the power grid through a cable; or, the first voltage conversion circuit 50 and the second voltage conversion circuit 60 can be connected to the power grid through a wireless charging coil; or, the first voltage conversion circuit 50 and the second voltage conversion circuit 60 can be connected through solar energy, wind energy or batteries.

[0109] In one embodiment, the main control circuit 20 is used to output preset state information to the state detection circuit 10; wherein the preset state information can be set to any one of a range value, a positive or negative value, or a specific value of a preset electric frequency value. The state detection circuit 10 is used to receive the preset state information and detect the state information of the roadblock to output a level signal to the main control circuit 20; the main control circuit 20 is also used to receive the level signal and output a control signal to the cellular signal transmission circuit 30, the control signal is used to trigger the cellular signal transmission circuit 30 to output position information; the cellular signal transmission circuit 30 is used to receive the control signal and output the position information of the roadblock to the main control circuit 20.

[0110] In one embodiment, the main control circuit 20 is also connected to the enable terminal of the first voltage conversion circuit 50, and is also used to receive the level signal and output an enable signal to the first voltage conversion circuit 50; Figure 2 and Fig.11 As shown, the roadblock state detection circuit 2 also includes: a power supply circuit 40 and a voltage sampling circuit 80, wherein the power supply circuit 40 is connected to the first voltage conversion circuit 50 and the second voltage conversion circuit 60, and the power supply circuit 40 is used to output a first voltage signal; the output end of the first voltage conversion circuit 50 is connected to the power supply end of the cellular signal transmission circuit 30, and is used to receive the enable signal and the first voltage signal, and convert the first voltage signal into a second voltage signal and then output it to the cellular signal transmission circuit 30; the output end of the second voltage conversion circuit 60 is connected to the power supply end of the main control circuit 20 and the power supply end of the state detection circuit 10, and is used to receive the first voltage signal, and convert the first voltage signal into a third voltage signal and then output it to the main control circuit 20 and the state detection circuit 10; wherein, when the second voltage conversion circuit 60 does not receive the trigger of the main control circuit 20, it locally supplies power to the global real-time, and the first voltage conversion circuit 50 does not work; the second voltage conversion circuit 60 is converted to global power supply after being triggered. The input end of the voltage sampling circuit 80 is connected to the output end of the power supply circuit 40, and the output end is connected to the main control circuit 20, for receiving the first voltage signal and outputting it to the main control circuit 20; the main control circuit 20 is also used to receive the signal fed back by the voltage sampling circuit 80 and determine the power level of the power supply circuit 40.

[0111] In one embodiment, Figure 7As shown, the first voltage conversion circuit 50 includes: a boost chip U3, a seventh capacitor C13, an eighth capacitor C14, a ninth capacitor C8, a tenth capacitor C9, a tenth capacitor C10, a thirteenth resistor R13, a fourteenth resistor R14 and a second inductor L2; wherein, the two ends LX of the coil of the boost chip U3 are connected to one end of the second inductor L2, and the other end of the second inductor L2 is connected to the output end of the power supply circuit 40; the input end VIN of the boost chip U3 is connected to the output end of the power supply circuit 40; the enable end EN of the boost chip U3 is connected to the output end of the main control circuit 20; the output end OUT of the boost chip U3 is connected to the power supply end of the wireless transmission and positioning circuit 30; the feedback end of the boost chip U3 FB is connected to one end of the thirteenth resistor R13 and one end of the fourteenth resistor R14; the other end of the thirteenth resistor R13 is connected to the output end OUT of the boost chip U3, and the other end of the fourteenth resistor R14 is connected to the ground end GND of the boost chip U3 and grounded; one end of the ninth capacitor C8 is connected to the output end OUT of the boost chip U3, and the other end of the ninth capacitor C8 is connected to the ground end GND of the boost chip U3; the ninth capacitor C8 and the tenth capacitor C9 are both connected in parallel with the ninth capacitor C8; one end of the seventh capacitor C13 is connected to the input end VIN of the boost chip U3 and the output end of the power supply circuit 40; the eighth capacitor C14 is connected in parallel with the seventh capacitor C13.

[0112] In one embodiment, Figure 8 As shown, the second voltage conversion circuit 60 includes: a voltage stabilizing chip U4, an eleventh capacitor C11 and a twelfth capacitor C12; Fig.10 As shown, the voltage sampling circuit 80 includes: a sixteenth resistor R16 and a seventeenth resistor R18; the sixteenth resistor R16 and the seventeenth resistor R18 realize voltage detection together with the ADC pin of the main control circuit 20, and the corresponding power value of the battery P2 can be obtained by converting the acquired voltage ratio. Among them, the input end VIN of the voltage stabilizing chip U4 is connected to the output end of the power supply circuit 40 and one end of the eleventh capacitor C11; the other end of the eleventh capacitor C11 is grounded; the output end of the voltage stabilizing chip U4 is connected to the power supply end of the main control circuit 20, the power supply end of the state detection circuit 10 and one end of the twelfth capacitor C12; the other end of the twelfth capacitor C12 is grounded. One end of the sixteenth resistor R16 is connected to the output end of the battery P2, and the other end of the sixteenth resistor R16 is connected to the main control circuit 20 and one end of the seventeenth resistor R18; the other end of the seventeenth resistor R18 is grounded.

[0113] In one embodiment, Figure 3As shown, the power supply circuit 40 includes: a charging management circuit 401, a battery P2 and a battery protection circuit 402, wherein the charging management circuit 401 has an input end connected to the solar panel and an output end connected to the input end of the battery P2, for receiving the power supply voltage signal and charging the battery P2; the battery P2 has an output end connected to the input end of the first voltage conversion circuit 50 and the input end of the second voltage conversion circuit 60, for receiving the power supply voltage signal and charging, and outputting a first voltage signal to the first voltage conversion circuit 50 and the second voltage conversion circuit 60, and the power supply voltage signal is converted into the first voltage signal after filtering; the battery protection circuit 402 is arranged between the charging management circuit 401 and the battery P2, for protecting the battery P2.

[0114] In one embodiment, Figure 6 As shown, the charging management circuit 401 includes: a charging management chip U2, a fourth capacitor C1, a fifth capacitor C7, a fourth resistor R8, a fifth resistor R5, a sixth resistor R9, a seventh resistor R1, an eighth resistor R4, a first MOS tube Q1, a first inductor L1, a first diode D2 and a second diode D3; wherein, the modulator output terminal VG of the charging management chip U2 is connected to one end of the fourth capacitor C1, and the other end of the fourth capacitor C1 is connected to the solar panel; wherein, the power supply voltage signal output by the solar panel is filtered by the fifteenth capacitor C4 and the sixteenth capacitor C5, and then connected to the charging management chip U2, and the charging management chip U2 can use a PWM buck-type single-cell battery charging management integrated circuit powered by a solar panel, and has trickle, constant current and constant voltage charging modes, which can extend the life of the battery P2 and achieve fast charging. Due to the harsh application scenarios, the present application can also achieve stable power supply when the input voltage, load, ambient temperature or circuit parameters change, and effectively protect electronic equipment from voltage fluctuations, such as Figure 7 As shown, the first voltage signal (VBAT) of the battery P2 is converted into a 5V signal through the first voltage conversion circuit 50, as shown in FIG. Figure 8 As shown, a 3.3V is converted by the second voltage conversion circuit 60 , 5V is used to power the cellular signal transmission circuit 30 , and 3.3V is used to power the state detection circuit 10 and the main control circuit 20 .

[0115] In order to reduce power consumption, the main control circuit 20 is in sleep mode most of the time. The present application has an automatic wake-up function. By configuring the interrupt parameters triggered by the status detection circuit 10 in the program, it is connected to the main control circuit 20 interrupt IO. The gyroscope chip U5 interrupt will only be awakened when it is triggered when moving. The loop compensation input terminal COM of the charging management chip U2 is connected to one end of the fourth resistor R8, the other end of the fourth resistor R8 is connected to one end of the fifth capacitor C7, and the other end of the fifth capacitor C7 is connected to one end of the sixth resistor R9 and grounded; the maximum power tracking terminal MPPT of the charging management chip U2 is connected to the other end of the sixth resistor R9 and one end of the fifth resistor R5; the external power supply positive input terminal VCC of the charging management chip U2 is connected to the other end of the fifth resistor R5 and the drain of the first MOS tube Q1; the source of the first MOS tube Q1 is connected to the anode of the first diode D2, and the cathode of the first diode D2 is connected to the cathode of the first diode D2. It is connected to one end of the first inductor L1, and the other end of the first inductor L1 is connected to one end of the seventh resistor R1, one end of the eighth resistor R4 and the charging current detection positive input terminal CSP of the charging management chip U2; the gate driving terminal DRV of the charging management chip U2 is connected to the gate of the first MOS tube Q1; the charging current detection negative input terminal BAT of the charging management chip U2 is connected to the other end of the seventh resistor R1 and the other end of the eighth resistor R4; the other end of the seventh resistor R1 is connected to the input end of the battery P2; the cathode of the second diode D3 is connected to the cathode of the first diode D2, and the anode of the second diode D3 is grounded.

[0116] In order to reduce power consumption, the main control circuit 20 cooperates with the state detection circuit 10. When the state detection circuit 10 is not triggered, the main control circuit 20 adjusts the entire circuit to a sleep mode. When in sleep mode, the main control circuit 20 turns off the power supply of the first voltage conversion circuit 50. When the state detection circuit 10 is triggered, the main control circuit 20 of the present application adjusts the entire circuit to an automatic wake-up function. After the automatic wake-up function is in place, the main control circuit 20 turns on the first voltage conversion circuit 50 to supply power.

[0117] In one embodiment, Figure 6As shown, the battery protection circuit 402 includes: a MOS field effect transistor Q2, a battery management chip U1, a ninth resistor R6, a tenth resistor R7, an eleventh resistor R2, a twelfth resistor R3, a sixth capacitor C6, and a second MOS transistor Q3; wherein the first gate S1 of the MOS field effect transistor Q2 is connected to the negative power input terminal VSS of the battery management chip U1; the second source of the MOS field effect transistor Q2 is connected to one end of the ninth resistor R6 and grounded; the other end of the ninth resistor R6 is connected to the current sensing input terminal CSI of the battery management chip U1; the first gate G1 of the MOS field effect transistor Q2 is connected to the discharge control terminal OD of the battery management chip U1; the second gate G2 of the MOS field effect transistor Q2 is connected to the discharge control terminal OD of the battery management chip U1; the second gate G3 of the MOS field effect transistor Q2 is connected to the discharge control terminal OD of the battery management chip U1; the second gate G4 of the MOS field effect transistor Q2 is connected to the discharge control terminal OD of the battery management chip U1; the second gate G5 of the MOS field effect transistor Q2 is connected to the discharge control terminal OD of the battery management chip U1; the second gate G6 of the MOS field effect transistor Q2 is connected to the discharge control terminal OD of the battery management chip U1; the second gate G7 of the MOS field effect transistor Q2 is connected to the discharge control terminal OD of the battery management chip U1; the second gate G8 of the MOS field effect transistor Q2 is connected to the discharge control terminal OD of the battery management chip U1; the second gate G9 of the MOS field effect transistor Q2 is connected to the discharge control terminal OD of the battery management chip U1; the second gate G1 ... 2 is connected to the charging control terminal OC of the battery management chip U1; one end of the eleventh resistor R2 is connected to the other end of the seventh resistor R1 and the positive electrode BAT+ of the battery, and the other end of the eleventh resistor R2 is connected to the positive power input terminal VDD of the battery management chip U1 and one end of the sixth capacitor C6; the other end of the sixth capacitor C6 is connected to one end of the tenth resistor R7 and the source of the second MOS tube Q3; one end of the twelfth resistor R3 is connected to one end of the eleventh resistor R2, and the other end of the twelfth resistor R3 is connected to the gate of the second MOS tube Q3; the other end of the tenth resistor R7 is grounded; the drain of the second MOS tube Q3 is connected to the negative electrode BAT- of the battery P2. Among them, the model of the battery management chip U1 is DW01, which together with the MOS field effect tube Q2 and its peripheral capacitors and resistors constitute a battery protection circuit 402. When the battery P2 is reversely connected, the MOS field effect tube Q2 is not turned on to protect the subsequent circuits. It can protect the battery P2 from overcharging, over-discharging and over-current, ensuring the safety and reliability of the equipment.

[0118] In one embodiment, Figure 4 As shown, the main control circuit 20 includes: a main control chip U6, a thirteenth capacitor C18 and a fourteenth capacitor C19; wherein the main control chip U6 is an ultra-low power consumption STM32L010F4P6 microcontroller, including high performance M0+ 32-bit RISC core, operating frequency of 32MHz, high-speed embedded memory (16KB flash program memory, 128 bytes of data EEPROM and 2KBRAM) and a wide range of enhanced I / O and peripherals. The ultra-low power STM32L010F4P6 operates at a voltage of 1.8 to 3.6V and a temperature range of -40 to +85℃. Figure 4As shown, the cellular signal transmission circuit 30 includes: a wireless transmission and positioning chip U7; wherein the bidirectional data line P1.4 and the clock line P1.5 of the main control chip U6 are both connected to the state detection circuit 10; the transmitting end P3.1 of the main control chip U6 is connected to the receiving end RXD of the wireless transmission and positioning chip U7, and the receiving end P3.0 of the main control chip U6 is connected to the transmitting end TXD of the wireless transmission and positioning chip U7; the output end P1.2 of the main control chip U6 is connected to the enable end of the first voltage conversion circuit 50; the power supply end Vcc of the main control chip U6 is connected to the output end of the second voltage conversion circuit 60; one end of the thirteenth capacitor C18 is connected to the power supply end Vcc of the main control chip U6, and the other end of the thirteenth capacitor C18 is grounded; the fourteenth capacitor C19 is connected in parallel with the thirteenth capacitor C18; the power supply end VIN of the wireless transmission and positioning chip U7 is connected to the output end of the first voltage conversion circuit 50.

[0119] In another embodiment, different from the above embodiment, the main control chip U6 may also adopt a STC8G1K17 microcontroller.

[0120] In one embodiment, Figure 5As shown, the state detection circuit 10 includes: a gyroscope chip U5, a first resistor R10, a second resistor R11, a third resistor R12, a first capacitor C16, a second capacitor C15 and a third capacitor C17; wherein, since the gyroscope chip U5 and the main control circuit 20 adopt I2C communication, the input and output structure adopts an open-drain structure, and the open-drain structure cannot obtain a high level independently, so it is necessary to realize the high level in the I2C communication process through the external first resistor R10, the second resistor R11 and the third resistor R12; since a large-capacity capacitor cannot be integrated inside the gyroscope chip U5, a first capacitor C16, a second capacitor C15 and a third capacitor C17 are arranged outside the gyroscope chip U5 to filter out the noise of the power supply voltage and make the power supply more stable. The clock line SCL of the gyroscope chip U5 is connected to the main control circuit 20 and one end of the second resistor R11, and the two are mainly connected through bus communication; the chip select terminal CS and the data output terminal SDO of the gyroscope chip U5 are both connected to one end of the first resistor R10; the bidirectional data line SDA of the gyroscope chip U5 is connected to the main control circuit 20 and one end of the third resistor R12; the output terminal INT2 of the gyroscope chip U5 is connected to the main control circuit 20; the other end of the second resistor R11 is connected to the output end of the second voltage conversion circuit 60; the other end of the first resistor R10 is connected to the output end of the second voltage conversion circuit 60; the other end of the third resistor R12 is connected to the output end of the second voltage conversion circuit 60; one end of the first capacitor C16 is connected to the first power supply terminal VDD and the second power supply terminal VDD_IO of the gyroscope chip U5, and the other end of the first capacitor C16 is connected to the output end of the second voltage conversion circuit 60; the second capacitor C15 and the third capacitor C17 are both connected in parallel with the first capacitor C16.

[0121] In one embodiment, Figure 3 As shown, the roadblock state detection circuit 2 also includes: a manual sleep circuit 70, the output end of which is connected to the wake-up end of the main control circuit 20, for receiving a manual signal and outputting a sleep instruction to the main control circuit 20; Fig. 9 As shown, the manual sleep circuit 70 includes: a switch SW1 and a fifteenth resistor R17; wherein one end of the switch SW1 is connected to one end of the fifteenth resistor R17 and the wake-up end of the main control circuit 20, and the other end of the switch SW1 is grounded; the other end of the fifteenth resistor R17 is connected to the output end of the second voltage conversion circuit 60.

[0122] like Fig.11 As shown, the present application also provides a traffic cone, comprising: the roadblock state detection circuit 2 and the roadblock 1 as described above; the roadblock state detection circuit 2 is arranged on the roadblock 1.

[0123] Optionally, the roadblock state detection circuit 2 can be directly or indirectly fixed on the roadblock 1, for example: the roadblock state detection circuit 2 is encapsulated on the roadblock 1 by a shell; or, a placement position for accommodating the roadblock state detection circuit 2 is provided on the roadblock 1.

[0124] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A roadblock state detection circuit, characterized in that: include: Main control circuit; A state detection circuit connected to the main control circuit; A cellular signal transmission circuit connected to the main control circuit; A first voltage conversion circuit connected to the cellular signal transmission circuit; A second voltage conversion circuit connected to the main control circuit; The first voltage conversion circuit and the second voltage conversion circuit are independently arranged, and the second voltage conversion circuit is used to provide electric energy for the main control circuit.

2. The roadblock state detection circuit according to claim 1, characterized in that: The main control circuit is used to output preset status information to the status detection circuit; The state detection circuit is used to receive the preset state information and detect the state information of the roadblock to output a level signal to the main control circuit; The main control circuit is also used to receive the level signal and output a control signal to the cellular signal transmission circuit, wherein the control signal is used to trigger the cellular signal transmission circuit to output the position information; The cellular signal transmission circuit is used to receive the control signal and output the location information of the roadblock to the main control circuit.

3. The roadblock state detection circuit according to claim 2, characterized in that: The main control circuit is also connected to the enable terminal of the first voltage conversion circuit, and is also used to receive the level signal and output an enable signal to the first voltage conversion circuit; The roadblock state detection circuit also includes: a power supply circuit, wherein the power supply circuits are connected to the first voltage conversion circuit and the second voltage conversion circuit, and the power supply circuit is used to output a first voltage signal; the first voltage conversion circuit, whose output end is connected to the power supply end of the cellular signal transmission circuit, is used to receive the enable signal and the first voltage signal, and convert the first voltage signal into a second voltage signal and then output it to the cellular signal transmission circuit; the second voltage conversion circuit, whose output ends are connected to the power supply end of the main control circuit and the power supply end of the state detection circuit, is used to receive the first voltage signal, and convert the first voltage signal into a third voltage signal and then output it to the main control circuit and the state detection circuit; A voltage sampling circuit, whose input end is connected to the output end of the power supply circuit and whose output end is connected to the main control circuit, is used to receive the first voltage signal and output it to the main control circuit; the main control circuit is also used to receive the signal of the voltage sampling circuit and determine the power of the power supply circuit.

4. The roadblock state detection circuit according to claim 3, characterized in that: The first voltage conversion circuit includes: a boost chip, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, a fifteenth capacitor, a thirteenth resistor, a fourteenth resistor and a second inductor; Two ends of the coil of the boost chip are connected to one end of the second inductor, and the other end of the second inductor is connected to the output end of the power supply circuit; The input end of the boost chip is connected to the output end of the power supply circuit; The enable terminal of the boost chip is connected to the output terminal of the main control circuit; The output end of the boost chip is connected to the power supply end of the cellular signal transmission circuit; The feedback end of the boost chip is connected to one end of the thirteenth resistor and one end of the fourteenth resistor; the other end of the thirteenth resistor is connected to the output end of the boost chip, and the other end of the fourteenth resistor is connected to the ground end of the boost chip and grounded; One end of the ninth capacitor is connected to the output end of the boost chip, and the other end of the ninth capacitor is connected to the ground end of the boost chip; The fifteenth capacitor and the tenth capacitor are both connected in parallel with the ninth capacitor; One end of the seventh capacitor is connected to the input end of the boost chip and the output end of the power supply circuit; The eighth capacitor is connected in parallel with the seventh capacitor.

5. The roadblock state detection circuit according to claim 3, characterized in that: The second voltage conversion circuit includes: a voltage stabilizing chip, an eleventh capacitor and a twelfth capacitor; The voltage sampling circuit comprises: a sixteenth resistor and a seventeenth resistor; The input end of the voltage stabilizing chip is connected to the output end of the power supply circuit and one end of the eleventh capacitor; the other end of the eleventh capacitor is grounded; The output end of the voltage stabilizing chip is connected to the power supply end of the main control circuit, the power supply end of the state detection circuit and one end of the twelfth capacitor; the other end of the twelfth capacitor is grounded; One end of the sixteenth resistor is connected to the output end of the battery, and the other end of the sixteenth resistor is connected to the main control circuit and one end of the seventeenth resistor; The other end of the seventeenth resistor is grounded.

6. The roadblock state detection circuit according to claim 3, characterized in that: The power supply circuit comprises: A charging management circuit, the input end of which is connected to the solar panel, the output end of which is connected to the input end of the battery, and is used to receive a power supply voltage signal and charge the battery; The battery, the output end of which is connected to the input end of the first voltage conversion circuit and the input end of the second voltage conversion circuit, is used to receive the supply voltage signal and charge, and output the first voltage signal to the first voltage conversion circuit and the second voltage conversion circuit; The battery protection circuit is arranged between the charging management circuit and the battery and is used for protecting the battery.

7. The roadblock state detection circuit according to claim 6, characterized in that: The charging management circuit includes: a charging management chip, a fourth capacitor, a fifth capacitor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first MOS tube, a first inductor, a first diode and a second diode; The modulator output end of the charging management chip is connected to one end of the fourth capacitor, and the other end of the fourth capacitor is connected to the solar panel; The loop compensation input terminal of the charging management chip is connected to one end of the fourth resistor, the other end of the fourth resistor is connected to one end of the fifth capacitor, and the other end of the fifth capacitor is connected to one end of the sixth resistor and grounded; The maximum power tracking terminal of the charging management chip is connected to the other end of the sixth resistor and one end of the fifth resistor; The external power positive input terminal of the charging management chip is connected to the other end of the fifth resistor and the drain of the first MOS tube; the source of the first MOS tube is connected to the anode of the first diode, the cathode of the first diode is connected to one end of the first inductor, and the other end of the first inductor is connected to one end of the seventh resistor, one end of the eighth resistor and the charging current detection positive input terminal of the charging management chip; The gate driving terminal of the charging management chip is connected to the gate of the first MOS tube; The charging current detection negative input terminal of the charging management chip is connected to the other end of the seventh resistor and the other end of the eighth resistor; The other end of the seventh resistor is connected to the input end of the battery; A cathode of the second diode is connected to a cathode of the first diode, and an anode of the second diode is grounded.

8. The roadblock state detection circuit according to claim 7, characterized in that: The battery protection circuit includes: a MOS field effect tube, a battery management chip, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a sixth capacitor, and a second MOS tube; The first gate of the MOS field effect transistor is connected to the negative power input terminal of the battery management chip; The second source of the MOS field effect tube is connected to one end of the ninth resistor and grounded; the other end of the ninth resistor is connected to the current sensing input end of the battery management chip; The first gate of the MOS field effect transistor is connected to the discharge control terminal of the battery management chip; The second gate of the MOS field effect tube is connected to the charging control terminal of the battery management chip; One end of the eleventh resistor is connected to the charging management circuit and the positive electrode of the battery, and the other end of the eleventh resistor is connected to the positive power input terminal of the battery management chip and one end of the sixth capacitor; The other end of the sixth capacitor is connected to one end of the tenth resistor and the source of the second MOS tube; One end of the twelfth resistor is connected to one end of the eleventh resistor, and the other end of the twelfth resistor is connected to the gate of the second MOS tube; The other end of the tenth resistor is grounded; The drain of the second MOS tube is connected to the negative electrode of the battery.

9. The roadblock state detection circuit according to any one of claims 1 to 8, characterized in that: The main control circuit comprises: a main control chip, a thirteenth capacitor and a fourteenth capacitor; The cellular signal transmission circuit includes: a wireless transmission and positioning chip; The bidirectional data line and clock line of the main control chip are both connected to the state detection circuit; the transmitting end of the main control chip is connected to the receiving end of the wireless transmission and positioning chip, and the receiving end of the main control chip is connected to the transmitting end of the wireless transmission and positioning chip; One end of the thirteenth capacitor is connected to the power supply end of the main control chip, and the other end of the thirteenth capacitor is grounded; The fourteenth capacitor is connected in parallel with the thirteenth capacitor.

10. The roadblock state detection circuit according to any one of claims 1 to 8, characterized in that: The state detection circuit comprises: a gyroscope chip, a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor and a third capacitor; The clock line of the gyroscope chip is connected to the main control circuit and one end of the second resistor; the chip selection end and the data output end of the gyroscope chip are connected to one end of the first resistor; the bidirectional data line of the gyroscope chip is connected to the main control circuit and one end of the third resistor; the output end of the gyroscope chip is connected to the main control circuit; The other end of the second resistor is connected to the output end of the second voltage conversion circuit; The other end of the first resistor is connected to the output end of the second voltage conversion circuit; The other end of the third resistor is connected to the output end of the second voltage conversion circuit; One end of the first capacitor is connected to the first power supply end and the second power supply end of the gyroscope chip, and the other end of the first capacitor is connected to the output end of the second voltage conversion circuit; The second capacitor and the third capacitor are both connected in parallel with the first capacitor.

11. The roadblock state detection circuit according to any one of claims 1 to 8, characterized in that: Also includes: A manual sleep circuit, whose output end is connected to the wake-up end of the main control circuit, is used to receive a manual signal and output a sleep instruction to the main control circuit; The manual sleep circuit comprises: a switch and a fifteenth resistor; One end of the switch is connected to one end of the fifteenth resistor and the wake-up end of the main control circuit, and the other end of the switch is grounded; The other end of the fifteenth resistor is connected to the output end of the second voltage conversion circuit.

12. A traffic cone, characterized in that: Comprising: a roadblock and a roadblock status detection circuit as described in any one of claims 1 to 11, wherein the roadblock status detection circuit is arranged on the roadblock.

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