Selling UWB Precise Location System Technology Source Code & Schematic/PCB Diagram

  • Indoor Anchor A1102P

    The UWB real-time location system is a TDOA location system using UWB wireless communication technology, with a location accuracy of about 30~50cm.

    Both Anchors, A1102P and A1106P, are ceiling-mounted and are usually used indoors. The power supply methods are all POE power supply.

    The anchor can be configured as a location anchor or clock source. When configured as a anchor, it is responsible for receiving the UWB location signal sent by the tag and the clock synchronization signal sent by the clock source; when configured as a clock source, it periodically sends the clock synchronization signal. The latest version of the firmware allows the anchor to function as a normal anchor and clock source at the same time.

    A1102P is a single network port anchor, connected to the POE switch through a network cable.

    Main features:

    1. As a UWB location anchor, receive UWB location signals sent by tags
    2. As a UWB clock source, regularly send clock synchronization signals to keep the clocks of anchors in the area consistent
    3. Use POE power supply, no need to provide additional power supply
    4. The IP address can be specified or automatically assigned through DHCP.
    5. Automatic discovery by location engine.
    6. Each anchor has an EUI64 ID that complies with the EUI specification.
    7. The clock synchronization signal sending interval is configurable
    8. The PAN ID can be configured to filter irrelevant UWB packets.
    9. The clock can be synchronized with up to 5 clock sources for location.
    10. The preamble length/PRF/PAC of UWB communication data packets can be configured.
    11. The anchor firmware can be upgraded.

    Read more …

  • Indoor Anchor A1106P

    The UWB real-time location system is a TDOA location system using UWB wireless communication technology, with a location accuracy of about 30~50cm.

    Both anchors, A1102P and A1106P, are ceiling-mounted and are usually used indoors. The power supply methods are all POE power supplies.

    The anchor can be configured as a location anchor or clock source. When configured as a anchor, it is responsible for receiving the UWB location signal sent by the tag and the clock synchronization signal sent by the clock source; when configured as a clock source, it periodically sends the clock synchronization signal. The latest version of the firmware allows the anchor to function as a normal location anchor and clock source at the same time.

    A1106P is a dual network port anchor with built-in network switch chip and POE power supply/power receiving chip. One network port is connected to the POE switch, and the other network port is connected to other lower-level anchors. Up to 6 anchors can be connected in series.

    Main features

    1. As a UWB location anchor, receive UWB location signals sent by tags
    2. As a UWB clock source, regularly send clock synchronization signals to keep the clocks of anchors in the area consistent
    3. Use POE power supply, no need to provide additional power supply
    4. A1106P provides another network port to supply power to other network devices and provide network access.
    5. The IP address can be specified or automatically assigned through DHCP.
    6. Automatic discovery by the location engine.
    7. Each anchor has an EUI64 ID that complies with the EUI specification.
    8. The clock synchronization signal sending interval is configurable
    9. The PAN ID can be configured to filter irrelevant UWB data packets
    10. The clock can be synchronized with up to 5 positioned clock sources
    11. The preamble length/PRF/PAC of UWB communication data packets can be configured, etc.
    12. anchor firmware can be upgraded

    Read more …

  • Name-Card Style Tag T1201C

    Our mass-produced location tags are name-card style and use DW1000 as the UWB transceiver. In the early stage, the DWM1000 module was used, and in the later stage, the self-designed UWB module was used. Some models also added LNA/PA to increase the location range.

    Use STM32F103RBT6 as the main control MCU. Our initial purchase price for this chip was about 12 yuan to 14 yuan, and later it rose to 180 yuan per piece. It was really crazy and made us very passive. However, it later fell back.

    The power supply uses an 800mah lithium battery as the power source, and uses a USB interface for charging, which also serves as the tag configuration interface.

    There is an MPU6050 three-dimensional accelerometer chip designed on the tag. During mass production, it was found that the effect was not very great, and this chip was not attached in the later production.

    There are 2 LEDs designed on the tag, one red and one green.

    There is a button designed on the tag, which can be used for alarm purposes. Specific uses require server-side design. The firmware design can support multiple buttons, and later OEM customers need to add other functions (such as anti-tampering, etc.).

    Read more …

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How to implement UWB precise location system with TDOA technology(2)

Written by: zhang
Category: Technology

This is a series of articles that will introduce you to how to implement a UWB precise location system using TDOA technology.

IMPORTANT NOTE:

  • Q: Do I need basic knowledge to create this location system?
  • A: This article is not for beginners. It requires a basic knowledge of electronic technology and software programming.
  • Q: Are your hardware/software open source?
  • A: It is not open source.
    In the article, I will introduce how to implement the UWB location system and tell you how to overcome the difficulties, but I will not directly give you the Gerber file of the PCB to make a board, nor will I give you the source code of the software, nor will I give you the compiled firmware.
    I'm not going to give you any direct results, I'm just telling you how.
  • Q: I am personally very interested in UWB location. Can I make a location system?
  • A: If you have a strong hardware/software background and a lot of time, you can certainly do it. This article is just for you to read!
  • Q: I am a commercial company and I want to develop the UWB location system into a commercial product.
  • A: Of course. This article is also written for you. If you want to build the entire system from zero, after reading my article, you only need to draw the circuit and make the board; conceive the software structure and then coding.
    In this way, I will mention all the difficulties in the article and introduce the solutions. You don't need to hire people to do algorithm research. If you want to save trouble and time, you can directly purchase our circuit diagram (AD engineering files), purchase our software source code, and then quickly enter the production process. (Website: https://uwbhome.top )

Anchor firmware design-clock synchronization

Clock synchronization principle

We have said before that for TDOA technology, each anchor needs to have unified time, which is a difficulty. How to synchronize the clock?

Read more …

How to implement UWB precise location system with TDOA technology(1)

Written by: zhang
Category: Technology

Preface

This is a series of articles that will introduce you to how to implement a UWB precise location system using TDOA technology.

IMPORTANT NOTE:

  • Q: Do I need basic knowledge to create this location system?
  • A: This article is not for beginners. It requires a basic knowledge of electronic technology and software programming.
  • Q: Are your hardware/software open source?
  • A: It is not open source.
    In the article, I will introduce how to implement the UWB location system and tell you how to overcome the difficulties, but I will not directly give you the Gerber file of the PCB to make a board, nor will I give you the source code of the software, nor will I give you the compiled firmware.
    I'm not going to give you any direct results, I'm just telling you how.
  • Q: I am personally very interested in UWB location. Can I make a location system?
  • A: If you have a strong hardware/software background and a lot of time, you can certainly do it. This article is just for you to read!
  • Q: I am a commercial company and I want to develop the UWB location system into a commercial product.
  • A: Of course. This article is also written for you. If you want to build the entire system from zero, after reading my article, you only need to draw the circuit and make the board; conceive the software structure and then coding.
    In this way, I will mention all the difficulties in the article and introduce the solutions. You don't need to hire people to do algorithm research. If you want to save trouble and time, you can directly purchase our circuit diagram (AD engineering files), purchase our software source code, and then quickly enter the production process. (Website: https://uwbhome.top )

Starting in 2016, we started the UWB location project and officially stopped this project by the end of 2021. Now with the permission of the boss, it is decrypted. So I wrote out the entire project process.

If you are interested in UWB location, after reading this series of articles, you should be able to implement a UWB location system by yourself.

If you are using it commercially, it is recommended to purchase our technology (by the way, advertising, it is definitely cheaper than doing it yourself from scratch, mainly because it saves trouble and gets quick results, so we have been through the pitfalls you may fall into.
Website: https: //uwbhome.top ).

In recent years, UWB has become very popular. It has been speculated for a long time, but it seems that it has not been widely used in daily life.
However, in some specific fields, applications are becoming more and more widespread, such as underground coal mine location/chemical production industry location, etc. These high-risk industries have seen the benefits of UWB, so they are being used more and more.

Read more …

André Chr. Andersen's paper "Signal Emitter Positioning Using Multilateration"

Written by: zhang
Category: Technology

This article was published on André Chr. Andersen's blog, http://blog.andersen.im/2012/07/signal-emitter-positioning-using-multilateration .

Unfortunately, his blog cannot be opened now. Maybe he has no longer maintained it.

The TDOA algorithm used by our first version of the positioning engine comes from this article of his. André Chr. Andersen also provided MATLAB code at the end of the article, and Paul Hayes translated his MATLAB code toy into Python code, which can be found on github https://github.com/paulhayes/MultilaterationExample .

This algorithm is for ultrasonic positioning, but it is essentially the same as UWB positioning. The important thing is that this is a simple and easy-to-implement Multilateration algorithm, which can be used in UWB coordinate calculations after modification.

Read more …

Hardware Design for Location Tags

Written by: zhang
Category: Technology

Hardware Design for Location Tags

Our mass-produced location tags are name-card style and use DW1000 as the UWB transceiver. In the early stage, the DWM1000 module was used, and in the later stage, the self-designed UWB module was used. Some models also added LNA/PA to increase the location range.

Use STM32F103RBT6 as the main control MCU. Our initial purchase price for this chip was about 12 yuan to 14 yuan, and later it rose to 180 yuan per piece. It was really crazy and made us very passive. However, it later fell back.

The power supply uses an 800mah lithium battery as the power source, and uses a USB interface for charging, which also serves as the tag configuration interface.

There is an MPU6050 three-dimensional accelerometer chip designed on the tag. During mass production, it was found that the effect was not very great, and this chip was not attached in the later production.

There are 2 LEDs designed on the tag, one red and one green.

There is a button designed on the tag, which can be used for alarm purposes. Specific uses require server-side design. The firmware design can support multiple buttons, and later OEM customers need to add other functions (such as anti-tampering, etc.).

Read more …

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