CN209299285U - A kind of UWB positioning system - Google Patents
A kind of UWB positioning system Download PDFInfo
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- CN209299285U CN209299285U CN201921111233.3U CN201921111233U CN209299285U CN 209299285 U CN209299285 U CN 209299285U CN 201921111233 U CN201921111233 U CN 201921111233U CN 209299285 U CN209299285 U CN 209299285U
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- slave
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- uwb positioning
- interface circuit
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Abstract
The utility model provides a kind of UWB positioning system, including host and multiple slaves, and host is connected by two lines bus with each slave, to realize the power supply to host and each slave by two lines bus, and realizes the communication between host and each slave by two lines bus.The utility model can greatly prolong the transmission range of data in positioning system, the stability of improve data transfer, and be routed conveniently, and cost is relatively low.
Description
Technical field
The utility model relates to fields of communication technology, and in particular to a kind of UWB positioning system.
Background technique
In current UWB(Ultra Wideband, ultra wide band) in positioning system, locating base station, gateway and positioning service
Carried out data transmission mostly by twisted pair network cable between device, some are realized while supplying to be routed conveniently usable POE interchanger
Electricity and data transmission.But the distance that data are transmitted in above scheme will receive the limitation of twisted pair network cable, in general using double
Wiring distance can not be more than 100 meters when hoisting net line, once exceed or close on the length will lead to data transmission it is unstable,
Include but are not limited to packet loss, transmission rate it is slow and absolutely not signal the problems such as.
In UWB positioning system work progress, although the sighting distance between base station and gateway or between gateway and computer room is big
About there was only 50 meters to 80 meters or so, but in wiring in view of beautiful and job specfication necessarily has different degrees of coiling, that
It just will increase the length of cable laying, occur so as to cause unstable situation is transmitted.In part positioning occasion, such as open
The positioning in wealthy area, since place is open, in the case where signal covers comprehensive situation, length of mesh wire also can easily exceed 100 meters
Limitation.In addition, due to space enrironment complexity, thering is more shelter to lead to letter even if transmission range is not above 100 meters of limitation
Number covering is not good enough, needs to improve by adding base station, will lead to the increase of cost.
Utility model content
The utility model is to solve the skills such as limited, the data transmission stability difference of current UWB positioning system data transmission distance
Art problem provides a kind of UWB positioning system, can greatly prolong the transmission range of data in positioning system, improves data and passes
Defeated stability, and be routed conveniently, cost is relatively low.
The technical solution adopted in the utility model is as follows:
A kind of UWB positioning system, comprising: host and multiple slaves, the host pass through two lines bus and each slave
It is connected, to realize the power supply to the host and each slave by the two lines bus, and is realized by the two lines bus
Communication between the host and each slave.
The UWB positioning system further includes upper layer gateway or server, the host and the upper layer gateway or service
Device is communicatively coupled, wherein the host will pass through under the two lines bus from the data of the upper layer gateway or server
It is sent to each slave, and the data of each slave is received with by the data of each slave by the two lines bus
It is uploaded to the upper layer gateway or server.
The host includes first interface circuit, and each slave includes second interface circuit, the first interface electricity
Road is connected with the second interface circuit by the two lines bus.
The first interface circuit includes first interface chip, the string of the MCU of the first interface chip and the host
Mouth is connected, and is connected to the two lines bus by the first connector.
The first interface circuit further includes the electricity being connected between the first interface chip and first connector
Flat driving circuit.
The first interface circuit further includes be connected between the first interface chip and first connector
One protection circuit.
The second interface circuit includes second interface chip, the string of the MCU of the second interface chip and the slave
Mouth is connected, and is connected to the two lines bus by the second connector.
The second interface circuit further include be connected to it is whole between the second interface chip and second connector
Flow bridge.
The second interface circuit further includes be connected between the second interface chip and second connector
Two protection circuits.
The first protection circuit and the second protection circuit include gas-discharge tube, TVS pipe and thermistor.
The utility model has the beneficial effects that
The UWB positioning system of the utility model, host are connected by two lines bus with each slave, to pass through two lines bus reality
Now to the power supply of host and each slave, and the communication between host and each slave is realized by two lines bus, thereby, it is possible to big
The big transmission range for extending data in positioning system, the stability of improve data transfer, and be routed conveniently, cost is relatively low.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the UWB positioning system of the utility model one embodiment；
Fig. 2 is the topological diagram of the first interface circuit of the utility model one embodiment；
Fig. 3 is the topological diagram of the second interface circuit of the utility model one embodiment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, the UWB positioning system of the utility model, including host 10 and multiple slaves 20, host 10 pass through two
Bus is connected with each slave 20, to realize the power supply to host 10 and each slave 20 by two lines bus, and passes through two lines bus
Realize the communication between host 10 and each slave 20.
Further, as shown in Figure 1, the UWB positioning system of the utility model may also include upper layer gateway or server 30,
Host 10 is communicatively coupled with upper layer gateway or server 30, wherein host 10 can will be closed from upper wire or server 30
Data each slave 20 is issued to by two lines bus, and the data of each slave 20 are received with by each slave by two lines bus
20 data are uploaded to upper layer gateway or server 30.
In one embodiment of the utility model, host 10 includes first interface circuit, and each slave 20 includes second
Interface circuit, first interface circuit are connected with second interface circuit by two lines bus.
Further, first interface circuit includes first interface chip, the serial ports of first interface chip and the MCU of host 10
It is connected, and two lines bus is connected to by the first connector, first interface circuit further includes being connected to first interface chip and first
Level driving circuit and the first protection circuit between connector.Second interface circuit includes second interface chip, second interface
Chip is connected with the serial ports of the MCU of slave 20, and is connected to two lines bus by the second connector, and second interface circuit further includes connecting
Connect the rectifier bridge and the second protection circuit between second interface chip and the second connector.
In one embodiment of the utility model, the model of first interface chip can be but be not limited to TC100B,
The model of PB620, second interface chip can be but be not limited to TC001B, PB331.
The utility model is described in detail so that first interface chip is TC100B, second interface chip is TC001B as an example below
First interface circuit and second interface circuit.
As shown in Fig. 2, TXD, RXD pin of TC100B can be connected to the string of host MCU by resistance R12, R14 respectively
Mouthful.Level driving circuit includes metal-oxide-semiconductor Q1 and Q2, the diode D4 and inductance L1, in parallel that the drain electrode of metal-oxide-semiconductor Q1 passes through and connects
Resistance R6 ~ R9 and fuse F1 is connected to 24V power supply VCC, and the grid of metal-oxide-semiconductor Q1 is connected to TC100B's by resistance R16
BUSH pin has first node, the REVIN pin and VDET of TC100B between the drain electrode of the source electrode and metal-oxide-semiconductor Q2 of metal-oxide-semiconductor Q1
Pin passes through diode D6 respectively and resistance R17 is connected to the first node.The grid of metal-oxide-semiconductor Q2 is connected to by resistance R18
The source electrode of the BUSL pin of TC100B, metal-oxide-semiconductor Q2 passes through resistance R19 and R20 ground connection in parallel.First protection circuit includes gas
Discharge tube TV2, TVS pipe D9 and thermistor R1, the terminating No. two of gas-discharge tube TV2 are the first connector of 2EDG-2P
The both ends of P2, one end of thermistor R1 are connected with one end of the first connector P2, and the other end is connected with the cathode of TVS pipe D9,
The anode of TVS pipe D9 is connected with the other end of the first connector P2.In addition, first interface circuit may also include common mode inductance L2,
Its four end is connected respectively to the anode and cathode of above-mentioned first node, ground terminal, TVS pipe D9.
Based on above-mentioned first interface circuit, the first both ends connector P2 connect two conducting wires of two lines bus respectively, and slave 20 is logical
The data for crossing two lines bus transmission enter TC100B by the first connector P2, and after demodulated, data are exported by RXD pin to host
10 MCU completes the reception of data；When the MCU of host 10 needs to send data, the data for needing to send are passed by TXD pin
It is defeated by TC100B, after ovennodulation, modulated signal is loaded on two lines bus via the first connector P2.When TXD is sent out
When sending high level, high level is exported on two lines bus by BUSH pin driving metal-oxide-semiconductor Q1；When TXD sends low level, by BUSL
Pin driving metal-oxide-semiconductor Q2 exports low level on two lines bus.When lightning surge occurs, surge enters first via two lines bus and connects
Device P2 is met, energy can first be absorbed by gas-discharge tube TV2, and then rudimental energy flows into rear class by TVS pipe D9 double absorption,
Realize the effective protection of thunder and lightning.Thermistor R1 effect is the decoupling that primary protection and second level are protected, and surge is made first to act on gas
Then body discharge tube acts on TVS pipe, to effectively realize second level protection.
As shown in figure 3, TXD, RXD pin of TC001B can be connected to the serial ports of slave MCU by resistance R4, R5 respectively.
Rectifier bridge can integrate rectifier bridge for MB6S, and direct-flow positive pole end is connected to the SIN pin of TC001B, direct current negative pole end ground connection.The
Two protection circuits include gas-discharge tube TV1, TVS pipe D2 and thermistor R2, and the terminating No. two of gas-discharge tube TV1 are
The both ends of the second connector P1 of 2EDG-2P, one end of thermistor R2 are connected with one end of the second connector P1, the other end with
The cathode of TVS pipe D2 is connected, and the anode of TVS pipe D2 is connected with the other end of the second connector P1, and the two poles of the earth of TVS pipe D2 are also distinguished
It is connected to the exchange both ends of rectifier bridge.In addition, second interface circuit may also include Y capacitance C3 and C4, it is connected to rectifier bridge
Exchange one end and ground terminal between, between the exchange other end and ground terminal of rectifier bridge.The exchange both ends of rectifier bridge finally connect
It is connected to two lines bus, receives and dispatches AC signal, thus two lines bus is nonpolarity, can be avoided misconnection cable.
Based on above-mentioned second interface circuit, the second both ends connector P1 connect two conducting wires of two lines bus respectively, and host 10 is logical
The data for crossing two lines bus transmission are entered the SIN pin of TC001B by the second connector P1, by RXD pin output TTL letter after demodulation
Number give slave 20 MCU；When the MCU of slave 20 needs to send data, the TTL signal of the MCU of slave 20 is inputted by TXD pin
Modulated signal is loaded on two lines bus by TC001B after ovennodulation via the second connector P1.It is unrestrained when lightning stroke occurs
When gushing, surge enters the second connector P1 via two lines bus, and energy can first be absorbed by gas-discharge tube TV1, then be remained
Energy flows into rear class by TVS pipe D2 double absorption, realizes the effective protection of thunder and lightning.Thermistor R2 effect is primary protection and two
The decoupling of grade protection, makes surge first act on gas-discharge tube and then act on TVS pipe, to effectively realize second level protection.
In addition, the data received can be passed through interface conversion by host 10 in one embodiment of the utility model
Mode become the different communication modes such as Ethernet interface, 485 interfaces, wireless transceiver interface, to meet different communication topologies
Structure.
UWB positioning system according to the present utility model, host are connected by two lines bus with each slave, with total by two
Line realizes the power supply to host and each slave, and realizes the communication between host and each slave by two lines bus, as a result, can
Enough greatly prolong the transmission range of data in positioning system, the stability of improve data transfer, and be routed conveniently, cost compared with
It is low.
Term " first ", " second " are used for description purposes only in the description of the present invention, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " are defined as a result,
Feature can explicitly or implicitly include one or more of the features.The meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down "
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special
Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only
Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combination and combination.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (10)
1. a kind of UWB positioning system characterized by comprising host and multiple slaves, the host is by two lines bus and each
The slave is connected, and to realize the power supply to the host and each slave by the two lines bus, and passes through described two
Bus realizes the communication between the host and each slave.
2. UWB positioning system according to claim 1, which is characterized in that further include upper layer gateway or server, the master
Machine is communicatively coupled with the upper layer gateway or server, wherein the host will come from the upper layer gateway or server
Data each slave is issued to by the two lines bus, and the data of each slave are received by the two lines bus
The data of each slave are uploaded to the upper layer gateway or server.
3. UWB positioning system according to claim 1 or 2, which is characterized in that the host includes first interface circuit,
Each slave includes second interface circuit, and the first interface circuit and the second interface circuit pass through the two lines bus
It is connected.
4. UWB positioning system according to claim 3, which is characterized in that the first interface circuit includes first interface
Chip, the first interface chip are connected with the serial ports of the MCU of the host, and are connected to described two always by the first connector
Line.
5. UWB positioning system according to claim 4, which is characterized in that the first interface circuit further includes being connected to
Level driving circuit between the first interface chip and first connector.
6. UWB positioning system according to claim 5, which is characterized in that the first interface circuit further includes being connected to
The first protection circuit between the first interface chip and first connector.
7. UWB positioning system according to claim 6, which is characterized in that the second interface circuit includes second interface
Chip, the second interface chip are connected with the serial ports of the MCU of the slave, and are connected to described two always by the second connector
Line.
8. UWB positioning system according to claim 7, which is characterized in that the second interface circuit further includes being connected to
Rectifier bridge between the second interface chip and second connector.
9. UWB positioning system according to claim 8, which is characterized in that the second interface circuit further includes being connected to
The second protection circuit between the second interface chip and second connector.
10. UWB positioning system according to claim 9, which is characterized in that the first protection circuit and described second is protected
Protection circuit includes gas-discharge tube, TVS pipe and thermistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921111233.3U CN209299285U (en) | 2019-07-16 | 2019-07-16 | A kind of UWB positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921111233.3U CN209299285U (en) | 2019-07-16 | 2019-07-16 | A kind of UWB positioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209299285U true CN209299285U (en) | 2019-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921111233.3U Active CN209299285U (en) | 2019-07-16 | 2019-07-16 | A kind of UWB positioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209299285U (en) |
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2019
- 2019-07-16 CN CN201921111233.3U patent/CN209299285U/en active Active
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