Outdoor positioning system based on intelligent power supply

Abstract

The invention discloses an outdoor positioning system based on an intelligent power supply, and relates to the field of positioning, and the system comprises a tag chip and the intelligent power supply. The tag chip is arranged on to-be-positioned equipment, and the intelligent power supply is arranged on a street lamp; the tag chip is used for sending a tag unique identification code to the intelligent power supply, the intelligent power supply sends the tag unique identification code and the intelligent power supply unique identification code to the cloud server, and the cloud server determines intelligent power supply GPS information according to the intelligent power supply unique identification code and positions a device to be positioned according to the intelligent power supply GPS information. The application scene and the coverage range of the positioning service are greatly expanded.

Description

Technical Field

[0001] The present application relates to the field of positioning, and in particular to an outdoor positioning system based on an intelligent power supply. Background Art

[0002] In today's positioning technology field, although there are many positioning methods, each has certain limitations. First, the accuracy of positioning is limited to a certain extent by the number and distribution of equipment. In areas where equipment is scarce, the positioning effect will be greatly reduced. Second, the positioning system mainly relies on its own ecosystem and cannot effectively provide positioning services to users who are not part of its own ecosystem. Third, it is difficult to achieve comprehensive and accurate coverage planning for specific areas. For example, in some large industrial parks, remote villages and other areas, the reliability and stability of positioning are difficult to guarantee. Summary of the invention

[0003] In order to solve the above problems, the present application provides an outdoor positioning system based on a smart power supply.

[0004] To achieve the above-mentioned purpose, the present application provides an outdoor positioning system based on a smart power supply, including: a tag chip and a smart power supply; the tag chip is set on a device to be located, and the smart power supply is set on a street lamp; the tag chip is used to send a tag unique identification code to the smart power supply, and the smart power supply sends the tag unique identification code and the smart power supply unique identification code to a cloud server, and the cloud server determines the smart power supply GPS information according to the smart power supply unique identification code, and locates the device to be located according to the smart power supply GPS information.

[0005] Optionally, the smart power supply includes a Bluetooth main chip and a communication module; the Bluetooth main chip sends a tag unique identification code and a smart power supply unique identification code to a cloud server through the communication module.

[0006] Optionally, the communication module is a 4G cat1 module.

[0007] Optionally, the communication module is a lora communication module, a wisun communication module or a zigbee communication module.

[0008] Optionally, the cloud server stores smart power supply GPS information.

[0009] Optionally, the smart power supply further includes a GPS positioning module, and the GPS positioning module is used to collect GPS information of the smart power supply.

[0010] Optionally, a vibration detection device is provided on the device to be positioned, and the vibration detection device is used to detect the state of the device to be positioned.

[0011] Optionally, when the device to be located is in a static state, the frequency of the tag chip sending data is less than a set threshold; when the device to be located is in a moving state, the frequency of the tag chip sending data is greater than the set threshold.

[0012] Optionally, the tag chip enters a receiving mode after sending a signal to the smart power supply, and enters a sleep mode after the receiving mode continues for a preset time period.

[0013] According to the specific embodiments provided in this application, this application has the following technical effects:

[0014] The present application provides an outdoor positioning system based on a smart power supply. By setting the smart power supply on street lamps and utilizing the widely distributed characteristics of street lamps, a stable positioning network with plannable coverage is constructed. Whether in cities or rural areas, as long as there are street lamps, relatively stable positioning services can be provided, which is not restricted by the distribution of specific brand equipment, greatly expanding the application scenarios and coverage of positioning services. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A schematic diagram of the architecture of an outdoor positioning system based on a smart power supply provided in one embodiment of the present application;

[0017] Figure 2 A schematic diagram of the functional modules of a smart power supply provided in one embodiment of the present application. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] In an exemplary embodiment, Figure 1As shown, an outdoor positioning system based on a smart power supply is provided, including: a tag chip and a smart power supply; the tag chip is arranged on a device to be positioned, and the smart power supply is arranged on a street lamp; the tag chip is used to send a tag unique identification code to the smart power supply, and the smart power supply sends the tag unique identification code and the smart power supply unique identification code to a cloud server, and the cloud server determines the smart power supply GPS information according to the smart power supply unique identification code, and locates the device to be positioned according to the smart power supply GPS information.

[0021] When the smart power supply receives the beacon packet from the tag chip, it can obtain the rssi (signal strength) of the smart power supply->tag chip from the wireless, and judge the approximate distance based on the signal strength. When multiple smart power supplies receive the tag chip signal at the same time nearby, and their rssi are different, the precise location of the tag chip can be calculated based on the three-point positioning method. After the smart power supply receives the information from the tag chip, it adds its own unique identification code (smart power supply identification code) and the smart power supply GPS information to report to the cloud server.

[0022] As part of the entire system, the so-called hardware configuration of the cloud server is not protected by this application. Any configuration that meets the system operation requirements will do.

[0023] The smart power supply will also report the tag chip information to the cloud server. The cloud server will store the tag chip's positioning information + current time point in the database to form a continuous location point map and construct the tag chip's movement trajectory.

[0024] like Figure 2 As shown, the smart power supply includes a Bluetooth main chip and a communication module; the Bluetooth main chip sends a tag unique identification code and a smart power supply unique identification code to a cloud server through the communication module.

[0025] In a specific embodiment, the communication module is a 4G cat1 module. After the smart power supply receives the signal, it directly sends the smart power supply GPS information to the cloud server through the 4G cat1 module.

[0026] In another specific embodiment, the communication module is a lora communication module, a wisun communication module or a zigbee communication module. After receiving the signal, the smart power supply sends the smart power supply GPS information to the Internet of Things gateway through other wireless communication methods such as the lora communication module, the wisun communication module or the zigbee communication module, and then uploads it to the cloud server.

[0027] In a specific embodiment, the cloud server stores GPS information of the smart power supply.

[0028] In a specific embodiment, the smart power supply further includes a GPS positioning module, and the GPS positioning module is used to collect GPS information of the smart power supply.

[0029] Each smart power supply has precise location information in the cloud server, which can be reported by the GPS positioning module of the smart power supply or manually edited and specified by the cloud server.

[0030] When the smart power supply is equipped with a GPS positioning module: the tag chip broadcasts a beacon frame, which is received by multiple smart power supplies and sent to the cloud server. The cloud server calculates the position of the tag chip using a three-point positioning method based on the GPS information of the smart power supply, that is, locates the device to be positioned.

[0031] When the smart power supply is not equipped with a GPS positioning module: When the smart power supply is installed, the installer will enter the real GPS information of the smart power supply into the system. The tag chip broadcasts the beacon frame, which is received by multiple smart power supplies and sent to the cloud server. The cloud server calculates the location of the tag chip using the three-point positioning method based on the GPS information stored in the system.

[0032] When the smart power source is positioned incorrectly or the worker enters the information incorrectly, the cloud server retrieves the reported location information and deletes the erroneous information by cutting off the head and tail.

[0033] In a specific embodiment, the tag chip sends Bluetooth beacon frames from time to time, including its own unique identification information (tag identification code), remaining battery power, etc. A vibration detection device is set on the device to be located to detect whether the device to be located is in motion or in a stationary state. If it is in motion, the frequency of the tag chip sending signals is greater than the set threshold, that is, the frequency of sending data is high (such as once every 5 seconds), and it switches to the receiving state after the sending is completed, and it will not be in a dormant state during motion; in the short time from the moving state to the stationary state, the interval of sending beacons is gradually increased (such as 3 minutes). This process is called dynamic and static switching; if it is in a stationary state for a long time, the frequency of the tag chip sending data is less than the set threshold, that is, the frequency of sending data is low (such as 1 minute), and after the sending is completed, it starts a short reception (such as 5 seconds), and then enters sleep mode to save power. The tag chip generally sends at the maximum power, enters the receiving mode after the sending is completed, enters the sleep mode after receiving for a period of time (preset time period), and can be interrupted by the vibration sensor to wake up the chip. .

[0034] The outdoor positioning system based on smart power supply provided in this application has a Bluetooth main chip of the smart power supply using an MCU that supports Bluetooth function and is installed on a street lamp. Each smart power supply has smart power supply GPS information on the cloud server, and each smart power supply is a positioning base station. The Bluetooth main chip can receive Bluetooth device data on both sides of the road and transmit it to the cloud server through the street lamp uplink channel. The customer installs a search APP on his mobile phone to request the device location information of the bound tag chip to achieve the purpose of positioning the user.

[0035] The Bluetooth transmission distance is about 10-20 meters, and the distance between street lamp poles is about 35 meters. Therefore, this system can provide the device with a positioning service with an accuracy of about meters. In conjunction with multiple street lamps on both sides of the road, the positioning service can be further refined to provide decimeter or even centimeter-level services.

[0036] The positioning process of the outdoor positioning system based on intelligent power supply provided in this application is as follows:

[0037] 1. The user purchases a tag chip and turns on the device.

[0038] 2. Install the Find APP on your phone, or use the Find applet.

[0039] 3. Bind the tag chip to the APP.

[0040] 4. The device equipped with the tag chip moves on the road where the smart power supply is installed, and wireless data is exchanged with the Bluetooth main chip in the smart power supply. It is well known that the main chip consumes the most power during wireless transmission, the power consumption in wireless receiving state is low, and the power consumption in the dormant state of the main chip is extremely low. In order to save power to the greatest extent, the interaction method is as follows:

[0041] 1) The tag chip actively sends data packets at a lower frequency, such as once every 3 minutes. This sending frequency depends on the current motion state. The sending frequency is faster when in motion and very slow when stationary.

[0042] 2) Because it needs to receive messages from the smart power supply, the positioning chip starts wireless reception every 10s to tens of seconds, lasts for 3s to 10s, and then goes into sleep mode. The interval time and duration are also related to whether the device is in motion.

[0043] 3) The tag chip actively sends a beacon frame, which contains a unique positioning identification code. After receiving this message, the tag chip immediately replies with a confirmation message.

[0044] 5. The smart power supply receives the data and information from the tag chip and reaches the gateway through 4G cat1 or other wireless communication methods such as lora / wisun / zigbee, and then uploads it to the cloud server.

[0045] 6. The user opens the Finder app and requests the cloud server for the last location information of the specified device.

[0046] 7. Users can also use the search APP to request the cloud server to make a sound for a specified device to quickly find the tag chip.

[0047] 8. In addition, when the user opens the search APP or mini program, it can also receive information from surrounding tag chips and act as a temporary positioning base station to further improve positioning accuracy and expand positioning coverage.

[0048] like Figure 2 As shown, the outdoor positioning system based on intelligent power supply provided by this application can be applied to the field of drones. At present, the battery life of most drone equipment is only 20 minutes to 40 minutes, or even just over 10 minutes. Frequent charging makes the user experience of drone products poor. For drone equipment using 4G communication methods, frequent recycling and charging is very time-consuming and labor-intensive. For performance drones, users need to place the drone equipment in a small open area in advance, and it is difficult to achieve large-scale take-off and landing. The street lamp itself has the characteristics of distributed and self-contained power supply, which can provide shutdown and wireless charging services for drone equipment.

[0049] Before the battery runs out, the drone can automatically locate and find the parking area and wireless charging service according to the notification from the cloud server or the broadcast data sent by the smart power supply, so as to achieve the ultra-long flight and distributed parking capabilities of the drone. If the drone uses the positioning technology of this application, the cost of the built-in GPS module can be saved, which is a large power-consuming component, thereby improving the endurance of the drone.

[0050] When the drone has a lot of remaining power and is flying at a low altitude (too high to receive wireless data packets), it only turns on Bluetooth for wireless reception and does not send beacon frames to save power. When the remaining power is low and there is no mission in the air, it sends beacon packets at a high frequency, then turns on wireless reception to search for street lights with a landing pad. When the remaining power is low and there is a mission in the air, the operator is first informed of the power alarm, and the operator confirms whether to terminate the mission and go to charge.

[0051] If the drone does not have a built-in GPS module: When the remaining battery power of the drone is low, it will automatically lower to the height of a general lamp pole, collect road images through the camera, find the road with street lights, receive the broadcast information of the smart power supply like the tag chip, send its own information, find the nearby smart lamp poles, use Bluetooth to locate the specific location of the apron, use the camera and optical flow positioning to stop the drone, and complete the shutdown charging.

[0052] If the drone has a built-in GPS module: When the drone has little battery left, it requests the GPS location of an available helipad near the cloud server, navigates to the designated helipad based on the location, and uses the camera and optical flow positioning to stop the drone and complete the shutdown charging.

[0053] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. An outdoor positioning system based on intelligent power supply, characterized in that: include: A tag chip and a smart power supply; the tag chip is arranged on the device to be located, and the smart power supply is arranged on a street lamp; the tag chip is used to send a tag unique identification code to the smart power supply, and the smart power supply sends the tag unique identification code and the smart power supply unique identification code to a cloud server, and the cloud server determines the smart power supply GPS information according to the smart power supply unique identification code, and locates the device to be located according to the smart power supply GPS information.

2. The outdoor positioning system based on intelligent power supply according to claim 1, characterized in that: The smart power supply includes a Bluetooth main chip and a communication module; the Bluetooth main chip sends a tag unique identification code and a smart power supply unique identification code to a cloud server through the communication module.

3. The outdoor positioning system based on intelligent power supply according to claim 2, characterized in that: The communication module is a 4G cat1 module.

4. The outdoor positioning system based on intelligent power supply according to claim 2, characterized in that: The communication module is a lora communication module, a wisun communication module or a zigbee communication module.

5. The outdoor positioning system based on intelligent power supply according to claim 1, characterized in that: The cloud server stores smart power supply GPS information.

6. The outdoor positioning system based on intelligent power supply according to claim 1, characterized in that: The smart power supply further comprises a GPS positioning module, and the GPS positioning module is used to collect GPS information of the smart power supply.

7. The outdoor positioning system based on intelligent power supply according to claim 1, characterized in that: The device to be positioned is provided with a vibration detection device, and the vibration detection device is used to detect the state of the device to be positioned.

8. The outdoor positioning system based on intelligent power supply according to claim 7, characterized in that: When the device to be located is in a static state, the frequency of the tag chip sending data is less than a set threshold; when the device to be located is in a moving state, the frequency of the tag chip sending data is greater than the set threshold.

9. The outdoor positioning system based on intelligent power supply according to claim 1, characterized in that: The tag chip enters a receiving mode after sending a signal to the intelligent power supply, and enters a sleep mode after the receiving mode continues for a preset period of time.

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