Intelligent cone barrel and highway maintenance operation safety early warning system

Abstract

The utility model discloses an intelligent cone barrel and expressway maintenance operation safety early warning system, the intelligent cone barrel comprises a charging circuit, a buck-boost voltage stabilizing circuit, a switch circuit, an MCU, a gyroscope module and a communication module, the charging circuit is connected with the buck-boost voltage stabilizing circuit, the buck-boost voltage stabilizing circuit is connected with the switch circuit, and the MCU is connected with the switch circuit. The charging circuit, the buck-boost voltage stabilizing circuit, the switching circuit, the gyroscope module and the communication module are all connected with the MCU; the charging circuit is used for providing electric energy and transmitting the electric energy to the buck-boost voltage stabilizing circuit; the buck-boost voltage stabilizing circuit is used for integrating current and voltage input by the charging circuit and providing stable current and voltage; the switch circuit is used for controlling the voltage and current switch of each component, and the gyroscope module is used for collecting cone barrel attitude information and sending the cone barrel attitude information to the MCU; the communication module is used for achieving communication between the intelligent cone barrel and the outside. The standby time of the intelligent cone barrel is prolonged, and the purpose of low power consumption is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of traffic safety, and more specifically, to an intelligent cone barrel and a safety warning system for highway maintenance operations. Background Art

[0002] In the prior art, an intelligent cone barrel is generally composed of a roadblock barrel and an intelligent positioning head at the top. When in use, it is directly placed on a road or a highway, and the intelligent positioning head and the like can upload the road conditions of this section to a mobile terminal in real time.

[0003] However, the existing intelligent cone barrels have a short standby time and high power consumption. Therefore, how to provide an intelligent cone barrel with low power consumption is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0004] In view of this, the utility model provides an intelligent cone barrel and a safety warning system for highway maintenance operations, which improves the standby duration of the intelligent cone barrel and achieves the purpose of low power consumption.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An intelligent cone barrel includes a charging circuit, a buck-boost voltage stabilizing circuit, a switching circuit, an MCU, a gyroscope module and a communication module. The charging circuit is connected to the buck-boost voltage stabilizing circuit, the buck-boost voltage stabilizing circuit is connected to the switching circuit, and the charging circuit, the buck-boost voltage stabilizing circuit, the switching circuit, the gyroscope module and the communication module are all connected to the MCU;

[0007] The charging circuit is used to provide electric energy and transmit the electric energy to the buck-boost voltage stabilizing circuit;

[0008] The buck-boost voltage stabilizing circuit is used to integrate the current and voltage input by the charging circuit and provide a stable current and voltage;

[0009] The switching circuit is used to control the voltage and current switches of the MCU, the gyroscope module and the communication module;

[0010] The gyroscope module is used to collect the attitude information of the cone barrel and send it to the MCU;

[0011] The MCU is used to control the charging circuit, the buck-boost voltage stabilizing circuit, the switching circuit, the gyroscope module and the communication module;

[0012] The communication module is used to realize the communication between the intelligent cone barrel and the outside world.

[0013] Preferably, the charging circuit includes a charging chip U1, a resistor R1, a resistor R2, a resistor R3, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, and a light-emitting diode LED1. The VBUS interface is connected to the VCC pin of the charging chip U1 through the resistor R1. The connection node between the resistor R1 and the VCC pin is grounded through the capacitor C1 and the capacitor C2 respectively. The connection node between the BAT pin of the charging chip U1 and the IN interface is grounded through the capacitor C3 and the capacitor C4 respectively. The PROG pin of the charging chip U1 is grounded through the resistor R3. The light-emitting diode LED1 is connected to the resistor R2, and the CHRG# pin and the STDBY# pin of the charging chip U1 are connected to the light-emitting diode LED1.

[0014] Preferably, the buck-boost voltage regulation circuit includes a buck-boost chip U2, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a capacitor C5, a capacitor C6, a capacitor C7, an inductor L, and a bidirectional diode D1. The inductor L is connected between the L1 pin and the L2 pin of the buck-boost chip U2. The resistor R4 is connected between the PG pin of the buck-boost chip U2 and the input voltage. The FB pin of the buck-boost chip U2 is grounded through the resistor R6. The resistor R7 is connected between the FB pin of the buck-boost chip U2 and the output voltage. The capacitor C6 is connected between the output voltage and the ground. The capacitor C7 is connected between the input voltage and the GND pin of the buck-boost chip U2. The bidirectional diode D1 and the resistor R5 are connected in series and then connected in parallel with the capacitor C5.

[0015] Preferably, the switching circuit includes a power electronic switch chip U3, a resistor R8, a resistor R9, a capacitor C8, a capacitor C9, a capacitor C10, a capacitor C11, and an inductor L1. The inductor L1 is connected between the VOUT pin of the power electronic switch chip U3 and the output voltage. The resistor R8 is connected between the EN pin of the power electronic switch chip U3 and the ground. The resistor R9 is connected between the SET pin of the power electronic switch chip U3 and the ground. The input voltage is connected to the VIN pin of the power electronic switch chip U3, and the capacitor C8 is connected between the input voltage and the ground. The capacitor C9, the capacitor C10, and the capacitor C11 are respectively arranged between the output voltage and the ground.

[0016] Preferably, the model of the charging chip U1 is TP4056, the model of the buck-boost chip U2 is TPS63802, and the model of the power electronic switch chip U3 is MT9700.

[0017] A safety warning system for highway maintenance operations includes a plurality of intelligent cones, an intelligent gateway, a host computer, and a maintenance operation warning Internet of Things platform. The intelligent gateway is respectively connected to the intelligent cones, the host computer, and the maintenance operation warning Internet of Things platform;

[0018] The intelligent cones are used to collect the attitude information of the cones at the road maintenance operation site;

[0019] The intelligent gateway is used to receive and process the cone attitude information and send it to the maintenance operation warning Internet of Things platform;

[0020] The maintenance operation warning Internet of Things platform is used to display the cone attitude information and issue warning information;

[0021] The host computer is used to control the mutual communication between the intelligent gateway and the maintenance operation warning Internet of Things platform.

[0022] Preferably, the intelligent gateway includes a main control module, a wireless communication module, a wireless interface module, a wired interface module, and a power module. The main control module is respectively connected to the wireless communication module, the wireless interface module, the wired interface module, and the power module. The wireless communication module is connected to the maintenance operation warning Internet of Things platform. The wireless interface module is connected to the intelligent cones. The wired interface module is connected to the host computer.

[0023] Preferably, the communication delay for the intelligent gateway to establish a connection with the intelligent cones is within 100 ms.

[0024] Through the above technical solutions, compared with the prior art, the present utility model discloses an intelligent cone and a safety warning system for highway maintenance operations, which have the following advantages:

[0025] 1) The standby duration of the intelligent cones is increased, achieving the purpose of low power consumption.

[0026] 2) It can realize the rapid linkage control among this set of devices, so that when an intrusive collision occurs during highway construction and maintenance, the construction personnel can be reminded in time, effectively improving the safety management level of highway maintenance operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0028] Figure 1The attached drawing is a schematic diagram of the circuit connection of the intelligent cone barrel provided by the present utility model.

[0029] Figure 2 The attached drawing is the specific circuit diagram of the charging circuit provided by the present utility model.

[0030] Figure 3 The attached drawing is the specific circuit diagram of the buck-boost voltage stabilizing circuit provided by the present utility model.

[0031] Figure 4 The attached drawing is the specific circuit diagram of the switch circuit provided by the present utility model.

[0032] Figure 5 The attached drawing is the specific circuit diagram of the MCU provided by the present utility model.

[0033] Figure 6 The attached drawing is the specific circuit diagram of the communication module provided by the present utility model.

[0034] Figure 7 The attached drawing is the specific circuit diagram of the gyroscope module provided by the present utility model.

[0035] Figure 8 The attached drawing is a schematic diagram of a highway maintenance operation safety warning system provided by the present utility model.

[0036] Figure 9 The attached drawing is a schematic diagram of the intelligent gateway structure provided by the present utility model. Detailed implementation manners

[0037] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0038] The embodiments of the present utility model disclose an intelligent cone barrel, as Figure 1As shown, it includes: a charging circuit, a buck-boost voltage stabilizing circuit, a switching circuit, an MCU, a gyroscope module, and a communication module. The charging circuit is connected to the buck-boost voltage stabilizing circuit, and the buck-boost voltage stabilizing circuit is connected to the switching circuit. The charging circuit, the buck-boost voltage stabilizing circuit, the switching circuit, the gyroscope module, and the communication module are all connected to the MCU. The charging circuit is used to provide electrical energy, including storing electrical energy in a battery through a solar cell or other power source and transmitting the electrical energy to the buck-boost voltage stabilizing circuit. The buck-boost voltage stabilizing circuit is used to integrate the input current and voltage of the charging circuit to provide stable current and voltage for the MUC and each sensor. The switching circuit is used to control the voltage and current switches of each component. The gyroscope module is used to collect the attitude information of the cone barrel and send it to the MCU. The MCU is used to control the charging circuit, the buck-boost voltage stabilizing circuit, the switching circuit, the gyroscope module, and the communication module. The communication module is used to realize communication between the intelligent cone barrel and the outside world. The specific circuits of the MCU, the gyroscope module, and the communication module are as Figures 5 - 7 shown. The chip U5 used by the MCU is of the model STM32L552, the chip U6 used by the gyroscope module is of the model MPU6050, and the chip U8 used by the communication module is of the model E610-433T20S.

[0039] In this embodiment, as Figure 2As shown, the charging circuit includes a charging chip U1, a resistor R1, a resistor R2, a resistor R3, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, and a light-emitting diode LED1. The VBUS interface is connected to the VCC pin of the charging chip U1 through the resistor R1. The connection nodes of the resistor R1 and the VCC pin are grounded through the capacitors C1 and C2 respectively. The connection nodes of the BAT pin of the charging chip U1 and the IN interface are grounded through the capacitors C3 and C4 respectively. The PROG pin of the charging chip U1 is grounded through the resistor R3. The TEMP pin, GND pin, and EP pin of the charging chip U1 are all grounded. The model of the charging chip U1 is TP4056. The resistor R1 is an input current-limiting resistor, which can prevent the input current from being too large and damaging the circuit. LED1 is a three-color LED indicator. The three triodes represent three colors, namely red, green, and blue. When the device is in the charging state, the light will turn on. When the battery is not fully charged and is being charged, the red light will turn on. When it is fully charged, the green light will turn on. The resistor R2 is the current-limiting resistor of the LED1 indicator, which can prevent the current from being too large and damaging the indicator. When in the charging state, the CHRG# pin is set low and the red light turns on. When the battery is fully charged, the STDBY# pin is set low and the green light turns on. The resistor R3 is the charging current control resistor. Changing the resistance value of R3 can modify the charging current. The capacitors C1 and C2 are the input filtering circuits. Their main function is to smooth the voltage, reduce the fluctuations and noise generated by the power supply and affect the charging circuit, and can effectively reduce the ripple voltage in the input circuit. The capacitors C3 and C4 are the output filtering circuits. Their main function is to smooth the voltage, reduce the fluctuations and noise generated by the power supply chip and affect the system circuit, and can effectively reduce the ripple voltage in the output circuit.

[0040] In this embodiment, as Figure 3As shown, the buck-boost voltage regulator circuit includes a buck-boost chip U2, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a capacitor C5, a capacitor C6, a capacitor C7, an inductor L, and a bidirectional diode D1. An inductor L is connected between the L1 pin and the L2 pin of the buck-boost chip U2. A resistor R4 is connected between the PG pin of the buck-boost chip U2 and the input voltage. The FB pin of the buck-boost chip U2 is grounded through a resistor R6. A resistor R7 is connected between the FB pin of the buck-boost chip U2 and the output voltage. A capacitor C6 is connected between the output voltage and the ground. A capacitor C7 is connected between the input voltage and the GND pin of the buck-boost chip U2. The AGND pin of the buck-boost chip U2 is grounded. The bidirectional diode D1 and the resistor R5 are connected in series and then connected in parallel with the capacitor C5. The model of the buck-boost chip U2 is TPS63802. VIN (pin 10): input voltage pin; EN (pin 1): enable pin, used to enable or disable the chip; MODE (pin 2): working mode selection pin, controlling the working mode of the chip; GND (pin 8): chip ground; VOUT (pin 6): output voltage pin; PG (pin 5): power normal indication pin; FB (pin 4): feedback pin, used to adjust the output voltage; AGND (pin 3): analog ground; L1, L2 (pins 9 and 7): pins for connecting an external inductor. The bidirectional diode D1 can prevent reverse current and protect the circuit; the resistor R5 cooperates with the bidirectional diode D1 for input current limiting or surge current protection. C5 and R5 together form an RC filter circuit. This filter circuit can filter out high-frequency noise and ripple in the input power supply and provide a smoother and more stable voltage to the subsequent circuit. The inductor L is an inductor component for the buck-boost converter, and the capacitor C6 is used for filtering and stabilizing the output voltage.

[0041] In this embodiment, as Figure 4As shown, the switching circuit includes a power electronic switch chip U3, a resistor R8, a resistor R9, a capacitor C8, a capacitor C9, a capacitor C10, a capacitor C11, and an inductor L1. An inductor L1 is connected between the VOUT pin of the power electronic switch chip U3 and the output voltage. A resistor R8 is connected between the EN pin of the power electronic switch chip U3 and the ground. A resistor R9 is connected between the SET pin of the power electronic switch chip U3 and the ground. The input voltage is connected to the VIN pin of the power electronic switch chip U3, and a capacitor C8 is connected between the input voltage and the ground. The capacitors C9, C10, and C11 are respectively arranged between the output voltage and the ground. The model of the power electronic switch chip U3 is MT9700. VIN (pin 5): input voltage pin; EN (pin 4): enable pin, used to enable or disable the chip; GND (pin 2): chip ground; VOUT (pin 1): output voltage pin; SET (pin 3): pin for setting the output voltage, adjusted by an external resistor or inductor. The resistor R8 is used to pull down the EN pin to ensure that the EN pin remains at a low level when there is no signal input. The resistor R9 is a current limiting or feedback resistor, used to adjust and stabilize the output voltage; C9, C10, and C11 are output capacitors, used for filtering and stabilizing the output voltage.

[0042] When the device is powered on, the filter circuit of the charging chip first filters the input voltage and current. After the charging chip selects the charging current, the selected voltage and current are output from the BAT output terminal. The buck-boost chip will filter the current output by the charging chip again, and then stabilize the input voltage with a voltage range of 1.8V - 5.5V at 3.3V to supply power to the entire system. To achieve the purpose of low power consumption, a switching circuit is added before the input voltage of each component. The operating current of this chip is only 15 μA, and the current in the off state is only 1 μA. When a component needs to be used, the MCU will control the EN pin of the switching chip to achieve low power consumption settings for each component. In the actual measurement of low power consumption, the standby current of the intelligent cone barrel is 15 mA, and with a 3000 mAh battery, it can standby for up to 200 hours.

[0043] In this embodiment, a safety warning system for highway maintenance operations is disclosed, as Figure 8As shown in the figure, it includes multiple intelligent cones 4, an intelligent gateway 1, a host computer 2, and a maintenance operation warning Internet of Things platform 3. The intelligent gateway 1 is respectively connected to the intelligent cones 4, the host computer 2, and the maintenance operation warning Internet of Things platform 3; the intelligent cones 4 are placed at intervals at the edge of the highway maintenance section as an isolation belt and perform collision detection, used to collect the cone attitude information at the road maintenance operation site. Multiple intelligent cones 4 form an intelligent cone group; the intelligent gateway 1 is used to receive and process the cone attitude information and send it to the maintenance operation warning Internet of Things platform; the maintenance operation warning Internet of Things platform 3 is used to display the cone attitude information and issue warning information; the host computer 2 is used to control the mutual communication between the intelligent gateway 1 and the maintenance operation warning Internet of Things platform 3.

[0044] In this embodiment, as Figure 9 shown, the intelligent gateway includes a main control module, a wireless communication module, a wireless interface module, a wired interface module, and a power module. The main control module is respectively connected to the wireless communication module, the wireless interface module, the wired interface module, and the power module. The wireless communication module establishes a connection between the main control module and the maintenance operation warning Internet of Things platform 3 through the NB wireless network. The wireless interface module and the wired interface module are respectively provided with external connection data interfaces; the power module converts the external power and inputs it to the main control module. The wireless interface is used to connect the intelligent gateway 1 to the intelligent cone group. The wired interface module is connected to the host computer through USB. The host computer can actively send relevant instructions such as queries to query the status of the intelligent cone group or actively send relevant information to the maintenance operation warning Internet of Things platform. Preferably, the communication delay between the intelligent gateway 1 and the intelligent cone 4 is within 100 ms.

[0045] More specifically, the wireless interface module includes a Lora module, and the Lora module is connected to the main control module as a wireless interface. The wired interface module includes a USB interface module, and the USB interface module is connected to the main control module as a wired interface. The main modules are as follows:

[0046] (1) The main control module, as the control center of the intelligent gateway 1, realizes functions such as unified configuration, control management, and data exchange of various local interface modules; secondly, it accesses the maintenance operation warning Internet of Things platform 3 through the wireless communication module to realize real-time upload of alarm signals at the operation site, etc., and receive control instructions issued by the safety warning platform and execute operations, etc.

[0047] (2) The wireless communication module supports accessing the maintenance operation warning Internet of Things platform 3 through the wireless network method.

[0048] (3) The wireless interface module includes, but is not limited to, the LoRa module and other wireless modules, etc., and supports the centralized access of security intelligent devices with different wireless protocols, and performs unified management, unified exchange control, etc. through the main control module.

[0049] (4) The wired interface module, including but not limited to the USB interface module and other wired modules, etc., supports the centralized access of host devices with different wired protocols.

[0050] (5) The power module provides the working power for the intelligent gateway device.

[0051] The maintenance operation warning Internet of Things platform 3 is an existing Internet of Things platform. The warning information of the intelligent gateway 1 uploaded through the wireless communication module is processed and analyzed on the maintenance operation warning Internet of Things platform 3, and then a warning text message is sent to the management personnel. Data and control instruction signals are transmitted between the maintenance operation warning Internet of Things platform 3 and the intelligent gateway 1.

[0052] The specific working process is as follows:

[0053] The intelligent cone 4 sends warning information such as vehicle collision to the intelligent gateway 1. At the same time, when a vehicle breaks in, it can locate and send the location information of the accident site to the intelligent gateway 1. The intelligent gateway 1 can analyze the collision information detected by the intelligent cone 4 and can analyze the current collision level according to the data of the gyroscope sensor in the intelligent cone 4:

[0054] If the cone acceleration a ≤ 3g and the cone angular acceleration The communication control module at the cone end determines that there is no collision between the vehicle and the intelligent cone, which can be regarded as artificial movement of the cone or error;

[0055] If the cone acceleration 3g < a ≤ 4g and the cone angular acceleration The communication control module at the cone end determines that there is a first-level collision between the vehicle and the intelligent cone;

[0056] If the cone acceleration 4g < a ≤ 5g and the cone angular acceleration The communication control module at the cone end determines that there is a second-level collision between the vehicle and the intelligent cone;

[0057] If the cone acceleration a > 5g and the cone angular acceleration The communication control module at the cone end determines that there is a third-level collision between the vehicle and the intelligent cone.

[0058] After analyzing the collision level, the intelligent gateway sends collision warning information to the maintenance operation warning Internet of Things platform. After receiving the collision warning information sent by the intelligent gateway, the maintenance operation warning Internet of Things platform sends a collision warning text message to the relevant management personnel.

[0059] It should be noted that the above algorithms such as the collision level in the present utility model are all existing algorithms, and the present utility model has no innovation.

[0060] In the present specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method part.

[0061] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. An intelligent cone, characterized in that, It includes a charging circuit, a buck-boost voltage regulator circuit, a switching circuit, an MCU, a gyroscope module, and a communication module. The charging circuit is connected to the buck-boost voltage regulator circuit, the buck-boost voltage regulator circuit is connected to the switching circuit, and the charging circuit, the buck-boost voltage regulator circuit, the switching circuit, the gyroscope module, and the communication module are all connected to the MCU; The charging circuit is used to provide electrical energy and transmit the electrical energy to the buck-boost voltage regulator circuit; The buck-boost voltage regulator circuit is used to integrate the current and voltage input by the charging circuit and provide a stable current and voltage; The switching circuit is used to control the voltage and current switches of the MCU, the gyroscope module, and the communication module; The gyroscope module is used to collect the cone bucket attitude information and send it to the MCU; The MCU is used to control the charging circuit, the buck-boost voltage regulator circuit, the switching circuit, the gyroscope module, and the communication module; The communication module is used to realize the communication between the intelligent cone bucket and the outside world.

2. The intelligent cone barrel according to claim 1, characterized in that, The charging circuit includes a charging chip U1, resistors R1, R2, R3, capacitors C1, C2, C3, C4, and a light-emitting diode LED1. The VBUS interface is connected to the VCC pin of the charging chip U1 through the resistor R1. The connection node between the resistor R1 and the VCC pin is grounded through the capacitors C1 and C2 respectively. The connection node between the BAT pin of the charging chip U1 and the IN interface is grounded through the capacitors C3 and C4 respectively. The PROG pin of the charging chip U1 is grounded through the resistor R3. The light-emitting diode LED1 is connected to the resistor R2, and the CHRG# pin and the STDBY# pin of the charging chip U1 are connected to the light-emitting diode LED1.

3. The intelligent cone barrel according to claim 2, characterized in that, The buck-boost voltage regulator circuit includes a buck-boost chip U2, resistors R4, R5, R6, R7, capacitors C5, C6, C7, an inductor L, and a bidirectional diode D1. The inductor L is connected between the L1 pin and the L2 pin of the buck-boost chip U2. The resistor R4 is connected between the PG pin of the buck-boost chip U2 and the input voltage. The FB pin of the buck-boost chip U2 is grounded through the resistor R6. The resistor R7 is connected between the FB pin of the buck-boost chip U2 and the output voltage. The capacitor C6 is connected between the output voltage and the ground. The capacitor C7 is connected between the input voltage and the GND pin of the buck-boost chip U2. The bidirectional diode D1 and the resistor R5 are connected in series and then connected in parallel with the capacitor C5.

4. An intelligent cone according to claim 3, characterized in that, The switching circuit includes a power electronic switch chip U3, a resistor R8, a resistor R9, a capacitor C8, a capacitor C9, a capacitor C10, a capacitor C11, and an inductor L1. The inductor L1 is connected between the VOUT pin of the power electronic switch chip U3 and the output voltage. The resistor R8 is connected between the EN pin of the power electronic switch chip U3 and the ground. The resistor R9 is connected between the SET pin of the power electronic switch chip U3 and the ground. The input voltage is connected to the VIN pin of the power electronic switch chip U3, and the capacitor C8 is connected between the input voltage and the ground. The capacitor C9, the capacitor C10, and the capacitor C11 are respectively arranged between the output voltage and the ground.

5. An intelligent cone according to claim 4, characterized in that, The model of the charging chip U1 is TP4056, the model of the buck-boost chip U2 is TPS63802, and the model of the power electronic switch chip U3 is MT9700.

6. A safety warning system for highway maintenance operations, characterized in that, It includes a plurality of intelligent cone barrels according to any one of claims 1-5, and also includes an intelligent gateway, a host computer, and a maintenance operation warning Internet of Things platform. The intelligent gateway is respectively connected to the intelligent cone barrels, the host computer, and the maintenance operation warning Internet of Things platform; The intelligent cone barrels are used to collect the attitude information of the cone barrels at the road maintenance operation site; The intelligent gateway is used to receive and process the cone barrel attitude information and send it to the maintenance operation warning Internet of Things platform; The maintenance operation warning Internet of Things platform is used to display the cone barrel attitude information and issue a warning message; The host computer is used to control the mutual communication between the intelligent gateway and the maintenance operation warning Internet of Things platform.

7. The safety warning system for highway maintenance operations according to claim 6, characterized in that, The intelligent gateway includes a main control module, a wireless communication module, a wireless interface module, a wired interface module, and a power supply module. The main control module is respectively connected to the wireless communication module, the wireless interface module, the wired interface module, and the power supply module. The wireless communication module is connected to the maintenance operation warning Internet of Things platform. The wireless interface module is connected to the intelligent cone barrels. The wired interface module is connected to the host computer.

8. The safety warning system for highway maintenance operations according to claim 6, characterized in that, The communication delay for the intelligent gateway to establish a connection with the intelligent cone barrels is within 100 ms.

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