4G intersection sentry

Abstract

The 4G intersection sentry comprises a solar power supply circuit, a power supply processing circuit, a flow card communication circuit, a display screen circuit, a voice call circuit, a cellular communication main control unit and a single-chip microcomputer main control unit. The solar power supply circuit is connected with the power supply processing circuit, the power supply processing circuit is connected with the display screen circuit, the voice call circuit, the cellular communication main control unit and the single chip microcomputer main control unit, and the flow card communication circuit is connected with the cellular communication main control unit. According to the product, the advanced Internet of Things technology is adopted, data collected on site can be sent to an Internet of Things platform, a user can observe the latest site data anytime and anywhere, and the site can be trimmed in time according to the data on the platform.

Description

TECHNICAL FIELD

[0001] The utility model relates to safety warning equipment technical field, concretely relates to a 4G intersection sentry. BACKGROUND

[0002] The intersection sentry is a kind of traffic warning equipment, which is used for two-way early warning and induction to vehicles and pedestrians on the main road and branch road by comprehensive prompting mode such as directional voice, warning light and LED information screen, so as to avoid traffic accidents.

[0003] The existing intersection sentry usually does not have networking communication function, so that the management personnel cannot continuously understand and observe the working state of the equipment after leaving the equipment site, cannot confirm in real time whether the equipment has problems such as badness, damage or natural damage, and cannot work, and the management personnel need to frequently patrol to make the equipment continue to operate, which results in high operating cost. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a 4G intersection sentry, which can realize internet of things function and transmit equipment state data in real time.

[0005] The technical scheme of the utility model is as follows:

[0006] A 4G intersection sentry, comprising a solar power supply circuit, a power supply processing circuit, a flow card communication circuit, a display screen circuit, a voice calling circuit, a cellular communication main control unit and a single-chip microcomputer main control unit; the solar power supply circuit is connected with the power supply processing circuit; the power supply processing circuit is connected with the display screen circuit, the voice calling circuit, the cellular communication main control unit and the single-chip microcomputer main control unit; the single-chip microcomputer main control unit is connected with the display screen circuit, the voice calling circuit and the cellular communication main control unit; and the flow card communication circuit is connected with the cellular communication main control unit.

[0007] The further technical scheme of the embodiment is that the solar power supply circuit comprises a solar input circuit, a current detection circuit and a storage battery connected in sequence; and the current detection circuit is configured to send a signal to the single-chip microcomputer main control unit when detecting current exceeding a threshold value.

[0008] The further technical scheme of the embodiment is that the voice calling circuit comprises a power amplifier circuit and a shouting control circuit; and the power amplifier circuit is coupled with the shouting control circuit.

[0009] The further technical scheme of the embodiment is that the power supply processing circuit comprises a first voltage reduction circuit, a voltage boost circuit, a second voltage reduction circuit arranged in parallel and a third voltage reduction circuit and a voltage stabilizing circuit arranged in series, the first voltage reduction circuit is coupled to the display screen circuit, the voltage boost circuit is coupled to the power amplifier circuit, the second voltage reduction circuit is coupled to the megaphone control circuit, the third voltage reduction circuit is coupled to the cellular communication master control unit, and the voltage stabilizing circuit is coupled to the single-chip microcomputer master control unit.

[0010] The further technical scheme of the embodiment is that the flow card communication circuit comprises at least two slots for inserting flow cards.

[0011] The further technical scheme of the embodiment is that the radar circuit comprises at least two speed radars, and the radar circuit is coupled to the single-chip microcomputer master control unit.

[0012] The further technical scheme of the embodiment is that the camera is connected to the megaphone control circuit and the single-chip microcomputer master control unit respectively.

[0013] The further technical scheme of the embodiment is that the human body sensing circuit is coupled to the single-chip microcomputer master control unit.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] The utility model can realize real-time networking of the running data of the equipment through 4G communication, can send the data collected by the intersection sentinel to the internet of things platform, and can make the user see the latest on-site data at any time and any place, and can make the on-site modification in time according to the data on the platform. DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying the creative labor.

[0017] Figure 1 It is the structure block diagram of the 4G intersection sentinel of the utility model;

[0018] Figure 2 It is the structure diagram of the solar power supply circuit in the utility model;

[0019] Figure 3 It is the structure diagram of the cellular communication master control unit and flow card communication circuit in the utility model;

[0020] Figure 4 Figure 1 is a structural diagram of a single-chip microcomputer master control unit in the utility model;

[0021] Figure 5 Figure 2 is a structural diagram of a voice calling circuit in the utility model;

[0022] Figure 6 Figure 3 is a structural diagram of a first voltage reduction circuit in the utility model;

[0023] Figure 7 Figure 4 is a structural diagram of a voltage increase circuit in the utility model. Specific embodiments

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relationship based on the drawings shown, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third", "fourth" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] As Figure 1As shown, the 4G intersection sentry in the embodiment includes a solar power supply circuit, a power supply processing circuit, a traffic card communication circuit, a display screen circuit, a voice call circuit, a cellular communication master control unit and a single-chip microcomputer master control unit; the solar power supply circuit is connected with the power supply processing circuit; the power supply processing circuit is connected with the display screen circuit, the voice call circuit, the cellular communication master control unit and the single-chip microcomputer master control unit; the single-chip microcomputer master control unit is connected with the display screen circuit, the voice call circuit and the cellular communication master control unit; and the traffic card communication circuit is connected with the cellular communication master control unit. Figure 4 As shown, the single-chip microcomputer control management module in the embodiment adopts an STM32F407VGT6 microprocessor which is connected with each part of the circuit, detects the state of each part of the circuit and the information obtained by the processing circuit, is responsible for controlling the operation of the circuit system, and uploads the device itself and the monitored data to the Internet of Things platform through the 4G communication technology of the cellular communication master control unit. The following will be described in detail respectively.

[0028] As shown, Figure 2 As shown, the solar power supply circuit includes a solar input circuit, a current detection circuit and a storage battery connected in sequence; the current detection circuit is configured to send a signal to the single-chip microcomputer master control unit when the detected current exceeds a threshold value. The solar input circuit adopts a charging management chip CN3767 to perform charging management on the internal storage battery; the CN3767 cooperates with a small amount of peripheral devices to perform PWM voltage reduction on the power supply input by the solar panel. It has two modes of constant current charging and overcharging. When the battery voltage reaches a certain level, the CN3767 enters the constant current charging stage. At this time, the charging current is set through an external resistor to ensure that the battery is charged with a stable current. As the battery voltage rises, the CN3767 gradually reduces the charging current. When the battery voltage reaches the set overcharge voltage 12.6V, it enters the overcharge stage. In this stage, the charging current will gradually decrease until it is reduced to 16% of the constant current charging current. At this time, it is considered that the charging is completed and enters the floating charging state. By using more stable and accurate components, the charging is more stable, and a PMOS tube is used instead of a traditional diode to reduce the heat generated during the charging process. CC6902SO is arranged in the current detection circuit to monitor the real-time charging current of the solar panel in real time and feed back to the single-chip microcomputer master control unit, so that it can better control the working efficiency of the CN3767 chip.

[0029] As shown, Figure 3 As shown, the cellular communication master control unit uses a more stable 4G master module MC665-CN to upload the intersection sentry itself and the monitored data to the Internet of Things platform using 4G communication technology. It is internally configured with a satellite positioning function. The coordinate information of the installation position can be obtained through satellite positioning, and the coordinate information is obtained to the master control module MC665-CN. The master control module realizes the display of the coordinate information.

[0030] Considering the influence of customer's needs and actual use scenarios, a double flow card design is adopted in the flow card communication circuit, 4G full network technology is used, and three major operators of mobile, Unicom and Telecom are supported. A 1.8V power supply is provided by the main control module MC665-CN, so that the SIM flow card module can meet the online needs of the main control module MC665-CN and the flow supply of data transmission.

[0031] The power supply processing circuit in the embodiment uses five power supply chips, i.e., TD1583 fixed frequency single-chip step-down mode voltage regulator, SSP7603P33 low voltage drop linear voltage regulator, TPS40057 high voltage synchronous step-down controller, IU5706 synchronous step-up controller and CJ7805 three-terminal linear voltage regulator, to provide stable power supply for the load in the rear stage, reduce the influence of voltage fluctuation and ensure that the load in the rear stage works in a reasonable and stable voltage range. Specifically, the power supply processing circuit includes a first step-down circuit TPS40057, a step-up circuit IU5706, a second step-down circuit CJ7805 arranged in parallel, and a third step-down circuit TD1583 and a voltage stabilizing circuit SSP7603P33MR arranged in series. The first step-down circuit is coupled to the display screen circuit, the step-up circuit is coupled to the power amplifier circuit, the second step-down circuit is coupled to the shouting control circuit, the third step-down circuit is coupled to the cellular communication main control unit, and the voltage stabilizing circuit is coupled to the single-chip microcomputer main control unit.

[0032] As shown in Figure 6 , the first step-down circuit TPS40057 adds a stable step-down function module to the mainboard, and TPS40057 cooperates with a small number of peripheral devices to step down the power supply input by the battery. The 12V power supply voltage is stepped down and stabilized to 5V output, and the output 5V is given to the display screen circuit. Proper adjustment of the device parameters of the circuit makes the entire circuit more stable, the deviation is reduced, and the output 5V voltage can be stabilized.

[0033] As shown in Figure 7 , the step-up circuit IU5706 adds a stable step-up function module to the mainboard, and IU5706 cooperates with a small number of peripheral devices to step up the power supply input by the battery. The 12V power supply voltage is stepped up and stabilized to 24V output, and the output 24V is given to the power amplifier circuit. Proper adjustment of the device parameters of the circuit makes the entire circuit more stable, the deviation is reduced, and the output 24V voltage can be stabilized.

[0034] The second step-down circuit CJ7805 stabilizes the voltage output to 5V after processing the voltage supplied by the battery through the CJ7805 step-down circuit, and supplies power to the shouting control circuit at the rear end for shouting and supplies power to the display screen communication interface for maintaining its communication work

[0035] The third voltage reduction circuit TD1583 reduces the voltage supplied by the battery, stabilizes to 3.8V, and then stably outputs to the functional module at the rear end, accurately and stably supplies power, and supplies 3.8V to the working voltage of the main control module MC665-CN and to the SSP7603P33 voltage stabilizing circuit module. Proper adjustment of the device parameters of the circuit makes the entire circuit more stable, the deviation is reduced, and a voltage of 3.8V can be stably output.

[0036] The voltage stabilizing circuit SSP7603P33MR further processes the 3.8V voltage processed by the TD1583 voltage reduction circuit, processes the voltage to 3.3V, and outputs the voltage to the single-chip microcomputer control management module STM32F407VGT6 and the storage functional module. A detection function is added, and the single-chip microcomputer control management module STM32F407VGT6 detects the input and output voltage values of the SSP7603P33 voltage stabilizing circuit in real time to adjust the parameter ratio of the device in real time to control the stable output of a voltage of 3.3V.

[0037] As shown in Figure 5 The voice call circuit includes a power amplifier circuit and a shouting control circuit, and the power amplifier circuit is coupled with the shouting control circuit. The shouting control circuit mainly includes a WT3000 and a voice synthesis chip, and can realize Chinese and English voice synthesis; and integrates voice encoding and decoding functions, can support users to perform voice synthesis and voice playback, has the characteristics of low cost, low power consumption, high reliability, and strong universality.

[0038] In the embodiment, the radar circuit, the camera, and the human body sensing circuit are also preferred. The radar circuit includes at least two speed radars, and the radar circuit is coupled to the single-chip microcomputer main control unit. The camera is connected with the shouting control circuit and the single-chip microcomputer main control unit respectively. The human body sensing circuit is coupled to the single-chip microcomputer main control unit. The sensor in the human body sensing circuit detects the approaching pedestrians or vehicles, and the single-chip microcomputer main control unit can automatically broadcast voice to the shouting control circuit, thereby playing an automatic warning effect.

[0039] The embodiment has the following advantages:

[0040] 1. Advanced Internet of Things technology is adopted, so that the collected data can be sent to the Internet of Things platform, and the user can see the latest on-site data at any time and anywhere, and can make timely adjustments to the on-site according to the data on the platform.

[0041] 2. High-precision satellite positioning technology is used, so that the installation position obtained on site can be sent to the platform, and the user can check the coordinate information on the mobile phone and use the map to timely and accurately arrive at the installation site to implement on-site maintenance.

[0042] 3. The high-efficiency solar panel is configured, and the light energy collected in the field environment can be converted into electric energy to supply the equipment in real time. Meanwhile, the equipment installation wiring is simple, the installation cost is low, and the equipment can work as long as the position is fixed and powered on. The installation and use are more convenient.

[0043] 4. According to the market demand, the sound and light equipment is added in the design, so that the sound and light warning prompt function of the equipment is realized, and the cloud platform function is matched, so that the voice can be replaced in real time and the playing times of each equipment are counted and monitored.

[0044] The above only describes the preferred embodiments of the utility model, and does not limit the utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A 4G intersection sentry, characterized in that, It includes a solar power supply circuit, a power processing circuit, a data card communication circuit, a display circuit, a voice call circuit, a cellular communication main control unit, and a microcontroller main control unit; the solar power supply circuit is connected to the power processing circuit, the power processing circuit is connected to the display circuit, the voice call circuit, the cellular communication main control unit, and the microcontroller main control unit, the microcontroller main control unit is connected to the display circuit, the voice call circuit, and the cellular communication main control unit, and the data card communication circuit is connected to the cellular communication main control unit.

2. The 4G intersection sentry according to claim 1, characterized in that: The solar power supply circuit includes a solar input circuit, a current detection circuit, and a battery connected in sequence. The current detection circuit is configured to send a signal to the microcontroller main control unit when it detects a current exceeding a threshold.

3. The 4G intersection sentry according to claim 1, characterized in that: The voice call circuit includes a power amplifier circuit and a voice control circuit, and the power amplifier circuit is coupled to the voice control circuit.

4. The 4G intersection sentry according to claim 3, characterized in that: The power processing circuit includes a first buck circuit, a boost circuit, and a second buck circuit connected in parallel, and a third buck circuit and a voltage regulator circuit connected in series. The first buck circuit is coupled to the display screen circuit, the boost circuit is coupled to the power amplifier circuit, the second buck circuit is coupled to the announcement control circuit, the third buck circuit is coupled to the cellular communication main control unit, and the voltage regulator circuit is coupled to the microcontroller main control unit.

5. The 4G intersection sentry according to claim 1, characterized in that: The data card communication circuit includes at least two slots for inserting data cards.

6. The 4G intersection sentry according to claim 1, characterized in that: It also includes a radar circuit, which includes at least two speed-measuring radars and is coupled to the microcontroller main control unit.

7. The 4G intersection sentry according to claim 3, characterized in that: It also includes a camera, which is connected to the loudspeaker control circuit and the microcontroller main control unit.

8. The 4G intersection sentry according to claim 1, characterized in that: It also includes a human body sensing circuit, which is coupled to the microcontroller main control unit.

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