CN212965383U - Safe high accuracy range unit based on UWB - Google Patents
Safe high accuracy range unit based on UWB Download PDFInfo
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- CN212965383U CN212965383U CN202021511885.9U CN202021511885U CN212965383U CN 212965383 U CN212965383 U CN 212965383U CN 202021511885 U CN202021511885 U CN 202021511885U CN 212965383 U CN212965383 U CN 212965383U
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- distance measuring
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Abstract
The utility model discloses a UWB-based safe high-precision distance measuring device, which comprises a plurality of distance measuring points and a communication module, wherein the positions among the distance measuring points are that a distance measuring point I is perpendicular to a distance measuring point II and is parallel to a distance measuring point III; the central processing unit is provided with a UWB ranging module, a UWB signal adjusting module and a transmitting antenna module, so that a UWB signal generated by the UWB ranging module is adjusted by the UWB signal adjusting module and then is transmitted by the transmitting antenna module; UWB ranging module, UWB signal adjustment module and transmitting antenna module realize the range finding function based on UWB technique through UWB ranging module, therefore survey precision under the complex environment is high, has UWB system with low costs, the penetrating power is strong, the low power dissipation, anti multipath is effectual, the security is high, advantages such as system complexity is low.
Description
Technical Field
The utility model belongs to the technical field of communication, concretely relates to safe high accuracy range unit based on UWB.
Background
The existing distance measurement technologies comprise ultrasonic distance measurement, Bluetooth distance measurement, Wi-Fi distance measurement and the like, but the existing distance measurement technologies have certain limitations, and ultrasonic waves need a large amount of hardware facility investment, so that the cost of the distance measurement technology is very high; bluetooth devices and Bluetooth equipment in the Bluetooth ranging are expensive, the adaptability is poor, and signals are easy to interfere; in Wi-Fi ranging, the coverage range is narrow, and signals are easy to interfere.
Therefore, a distance measurement technology is needed, and uwb (ultra Wide band) is a carrier-free communication technology and utilizes the transmission number of non-sine wave narrow pulses of nanosecond to picosecond level; UWB can realize the data transmission rate of hundreds of Mbit/s to Gbit/s in the range of about 10 meters; the UWB has the advantages of strong anti-interference performance, high transmission rate, extremely wide bandwidth, low power consumption, low transmitting power and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a safe high accuracy range unit based on UWB.
The utility model provides a technical scheme that its technical problem adopted is: a safe high-precision distance measuring device based on UWB comprises a plurality of distance measuring points and a communication module, wherein the positions among the distance measuring points are that a distance measuring point I is perpendicular to a distance measuring point II and is parallel to a distance measuring point III, and the distance measuring points and the communication module are all connected with a central processing unit and used for sending distance measuring requests to a mobile distance measuring and communication module in sequence; the central processing unit is provided with a UWB ranging module, a UWB signal adjusting module and a transmitting antenna module, so that UWB signals generated by the UWB ranging module are adjusted by the UWB signal adjusting module and then are transmitted through the transmitting antenna module.
Specifically, the plurality of distance measuring points are provided with an independent antenna port, and the communication module is provided with an independent antenna port.
Specifically, the UWB signal adjusting module includes a signal differential coupling unit and a radio frequency power amplifying unit, which are connected to each other.
Specifically, the UWB signal adjusting module further includes a first microwave switch unit connected between the signal differential coupling unit and the radio frequency power amplifying unit.
Specifically, the UWB signal adjusting module further includes a second microwave switch unit connected to an output end of the radio frequency power amplifying unit.
Specifically, the signal differential coupling unit is a balun transformer.
The utility model discloses following beneficial effect has: the device is provided with a plurality of distance measuring points and a communication module, the position between the distance measuring points is that a distance measuring point I is vertical to a distance measuring point II and is parallel to a distance measuring point III, the distance measuring points and the communication module are all connected with a central processing unit and are used for sending distance measuring requests to a mobile distance measuring and communication module in sequence, the UWB distance measuring module, a UWB signal adjusting module and a transmitting antenna module realize the distance measuring function based on the UWB technology through the UWB distance measuring module, thereby the measuring precision under the complex environment is high, the UWB system has the advantages of low cost, strong penetrating power, low power consumption, good multipath resistance effect, high safety, low system complexity and the like, meanwhile, the UWB signal adjusting module carries out differential coupling and radio frequency power amplification adjustment on the UWB signal generated by the UWB distance measuring module, the anti-jamming capability and the transmission distance of the signal can be effectively improved, thereby the system performance is ensured, the UWB ranging with wide coverage range is realized, and the ranging precision is further improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an overall schematic diagram of the present invention.
In the figure: 1-a distance measuring point; 2-a communication module; 3-a central processing unit, 31-a UWB ranging module, 32-a UWB signal adjusting module, 33-a transmitting antenna module and 34-a power supply module.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings.
Referring to fig. 1-2, a UWB-based safe high-precision distance measuring device includes a plurality of distance measuring points 1 and a communication module 2, wherein the distance measuring points 1 are perpendicular to the distance measuring points one and parallel to the distance measuring points three, and the distance measuring points 1 and the communication module 2 are connected to a central processing unit 3 for sequentially sending distance measuring requests to a mobile distance measuring and communication module 2; the central processing unit 3 is provided with a UWB ranging module 31, a UWB signal adjusting module 32, and a transmitting antenna module 33, so that a UWB signal generated by the UWB ranging module 31 is adjusted by the UWB signal adjusting module 32 and then transmitted through the transmitting antenna module 33.
The plurality of distance measuring points 1 are provided with an independent antenna port, and the communication module is provided with an independent antenna port.
The UWB signal adjusting module 32 includes a signal differential coupling unit and a radio frequency power amplifying unit connected to each other.
The UWB signal adjusting module 32 further includes a first microwave switch unit connected between the signal differential coupling unit and the radio frequency power amplifying unit, and the first microwave switch unit controls the radio frequency power amplifying unit to perform power amplification on the converted UWB signal by controlling the switching of the microwave signal channel. The microwave switch has impedance characteristics that the PIN tube is approximately connected or disconnected under direct current forward and reverse bias, and the impedance characteristics of the microwave switch are utilized to realize the function of controlling the conversion of a microwave signal channel so as to control the radio frequency power amplification unit to carry out power amplification adjustment on the UWB signal.
The UWB signal adjusting module 32 further includes a second microwave switch unit connected to the output end of the rf power amplifying unit, and the first microwave switch unit and the second microwave switch unit control the on/off of the input end and the output end of the rf power amplifying unit. The radio frequency power amplification unit specifically performs power amplification on the signal subjected to the microwave switch, transmits the signal to the SMA end after passing through the microwave switch, and finally transmits the signal through the transmitting antenna module 34.
The utility model discloses a theory of operation: a plurality of range finding point 1 distribute in each corner in the room or install in each corner of car, a plurality of range finding point 1 with signal transmission to central processing unit 3, remove the range finding point with signal transmission to communication module 2, central processing unit 3 calculates the distance between a plurality of range finding point 1 and the removal range finding point through the algorithm and measures range, central processing unit 3's UWB ranging module 31 carries out the range finding processing with the distance between a plurality of range finding point 1 and the removal point, UWB signal adjustment module 32 is adjusting UWB ranging module 31's signal, UWB signal that UWB ranging module 31 produced adjusts the back through UWB signal adjustment module 32, send through transmitting antenna module 33.
The utility model discloses not be limited to above-mentioned embodiment, anybody should learn the structural change who makes under the teaching of the utility model, all with the utility model discloses have the same or close technical scheme, all fall into the utility model discloses an within the protection scope.
The technology, shape and construction parts which are not described in detail in the present invention are all known technology.
Claims (6)
1. A safe high-precision distance measuring device based on UWB is characterized by comprising a plurality of distance measuring points and a communication module, wherein the positions among the distance measuring points are that a distance measuring point I is perpendicular to a distance measuring point II and is parallel to a distance measuring point III; the central processing unit is provided with a UWB ranging module, a UWB signal adjusting module and a transmitting antenna module, so that UWB signals generated by the UWB ranging module are adjusted by the UWB signal adjusting module and then are transmitted through the transmitting antenna module.
2. A UWB-based safe high precision distance measuring device according to claim 1, wherein the plurality of distance measuring points are provided with an independent antenna port, and the communication module is provided with an independent antenna port.
3. The safe high-precision UWB-based distance measuring device according to claim 1, wherein the UWB signal adjusting module comprises a signal differential coupling unit and a radio frequency power amplifying unit which are connected with each other.
4. The UWB-based safe high-precision distance measuring device according to claim 3, wherein the UWB signal adjusting module further comprises a first microwave switch unit connected between the signal differential coupling unit and the radio frequency power amplifying unit.
5. The UWB-based safe high-precision distance measuring device according to claim 3, wherein the UWB signal adjusting module further comprises a second microwave switch unit connected to the output end of the radio frequency power amplifying unit.
6. A safe and high-precision UWB-based distance measuring device according to claim 3, wherein the signal differential coupling unit is a balun transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021511885.9U CN212965383U (en) | 2020-07-28 | 2020-07-28 | Safe high accuracy range unit based on UWB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021511885.9U CN212965383U (en) | 2020-07-28 | 2020-07-28 | Safe high accuracy range unit based on UWB |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212965383U true CN212965383U (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021511885.9U Active CN212965383U (en) | 2020-07-28 | 2020-07-28 | Safe high accuracy range unit based on UWB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212965383U (en) |
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2020
- 2020-07-28 CN CN202021511885.9U patent/CN212965383U/en active Active
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