CN106411425B - A kind of special-purpose microwave short-range communication test macro - Google Patents
A kind of special-purpose microwave short-range communication test macro Download PDFInfo
- Publication number
- CN106411425B CN106411425B CN201610374706.3A CN201610374706A CN106411425B CN 106411425 B CN106411425 B CN 106411425B CN 201610374706 A CN201610374706 A CN 201610374706A CN 106411425 B CN106411425 B CN 106411425B
- Authority
- CN
- China
- Prior art keywords
- link
- switch
- unit
- special
- straight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The invention provides a kind of special-purpose microwave short-range communication test macro, including control unit, radio frequency unit, power supply unit, described control unit is made of processor and programmable logic cells connected to it, the radio frequency unit includes the transmit-receive sharing link connecting with control unit, emit straight-through link, straight-through link is received, the transmit-receive sharing link emits straight-through link and receives straight-through link.The invention can realize the detection of vehicle carried electronic label wakeup sensitivity, receiving sensitivity, transmission power and voltage and current, the test equipments such as alternative signal source, frequency spectrograph, digital multimeter, and then reduce cost, improve efficiency.
Description
Technical field
The invention belongs to radio-frequency communication technical field, tests system more particularly, to a kind of special-purpose microwave short-range communication
System.
Background technique
Intelligent transportation system is the developing direction of future transportation system, is to be transported based on hyundai electronics information technology towards traffic
Defeated system is concentrated mainly on road monitoring, expressway tol lcollection and system integration link.Electronic toll collection is most
Advanced toll on the road and bridge's mode, by the vehicle carried electronic label being mounted in vehicle windscreen and on the lane charge station ETC
Reader between special-purpose microwave short-range communication, using Computer Networking and bank backstage carry out settlement process, thus
Achieve the purpose that vehicle is not required to parking by toll on the road and bridge station and can pay road and bridge expense.
The no-stop charging system that China implements is using double-disk vehicle carried electronic label, it then follows dedicated short-range communication association
View, with the growing demand of vehicle carried electronic label, need a large amount of test equipment in process of production, have it is at high cost,
Environment complexity, the defect of equipment and instrument calibration etc. are built, therefore proposes to develop a set of test macro with radio-frequency performance
Scheme.
Summary of the invention
In view of this, the invention is directed to a kind of special-purpose microwave short-range communication test macro, it can be achieved that vehicle mounted electric
The detection of subtab wakeup sensitivity, receiving sensitivity, transmission power and voltage and current.
In order to achieve the above objectives, the technical solution of the invention is achieved in that
A kind of special-purpose microwave short-range communication test macro, including control unit, radio frequency unit, power supply unit, the control
Unit is connect with radio frequency unit, and power supply unit is that control unit and radio frequency unit are powered；
Described control unit is made of processor and programmable logic cells connected to it, and the radio frequency unit includes equal
The transmit-receive sharing link connecting with control unit emits straight-through link, receives straight-through link, the transmit-receive sharing link, transmitting
Straight-through link and the RF switch group connection for receiving straight-through link and being connect with antenna；
The transmit-receive sharing link includes that sequentially connected radio frequency chip, temperature compensation attenuator, dielectric filter and numerical control decline
Subtract device, the radio frequency chip is connect with programmable logic cells signal, and numerical-control attenuator connects RF switch group；
The straight-through link of transmitting includes that the wave detector of connection and π type attenuator, the wave detector are connect with processor, π
The other end of type attenuator connects RF switch group；
It is described to receive the signal demodulation access and signal processing access that straight-through link includes connection, the signal demodulation access
Including radio demodulating chip, the radio demodulating chip signal connects RF switch group, the radio demodulating chip and programmable
Logic unit two-way communication；The signal processing access and programmable logic cells two-way communication.
Further, the signal processing access includes the difference frequency overlapped-resistable filter and difference amplifier of connection, described
Difference frequency overlapped-resistable filter connects radio demodulating by analog-digital converter and programmable logic cells two-way communication, difference amplifier
Chip.
Further, the RF switch group includes the RF switch SW that 3 one end link together, and respectively first penetrates
One end of frequency switch, the second RF switch and third RF switch, the third RF switch connects antenna, by antenna and
OBU carries out radio communication, and one end of the first RF switch, the second RF switch and third RF switch is separately connected transmit-receive sharing
Link emits straight-through link, receives straight-through link.
Further, the power supply unit includes voltage-stablizer and DC/DC converter.
It further, further include current detecting unit and voltage detection unit, the current detecting unit includes that direct current is opened
It closes, sampling resistor, sampling resistor and DC switch parallel, described dc switch one end connects power supply unit, other end connection electricity
Subtab；The voltage detection unit includes an operational amplifier, institute will be added between voltage sampling point and analog-digital converter ADC
Driving of the operational amplifier as analog-digital converter ADC is stated, and samples the feed circuit of 1:1.
Further, PSAM, EEROM and indicator light buzzer are also connected on the processor.
Further, SWITCH is additionally provided between the radio frequency chip and programmable logic cells
Compared with the existing technology, the invention has the advantage that
(1) detection of vehicle carried electronic label wakeup sensitivity, receiving sensitivity, transmission power and voltage and current can be achieved,
The test equipments such as alternative signal source, frequency spectrograph, digital multimeter, and then cost is reduced, it improves efficiency；
(2) circuit design of the present invention is reasonable, and integration test is good, saves manpower.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide to further understand the invention, present invention wound
The illustrative embodiments and their description made are used to explain the present invention creation, do not constitute the improper restriction to the invention.?
In attached drawing:
Fig. 1 is test macro block diagram described in the invention embodiment；
Fig. 2 is radio frequency unit block diagram described in the invention embodiment；
Fig. 3 is electric current, voltage detection unit circuit diagram described in the invention embodiment.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the invention can
To be combined with each other.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments creates.
A kind of special-purpose microwave short-range communication test macro, as shown in Figure 1, including control unit and radio frequency list connected to it
Member, power supply unit, interface unit and protective unit,
Described control unit is made of processor and programmable logic cells connected to it, and processor passes through SPI interface
It is communicated with programmable logic cells, the present embodiment processor uses the arm processor of model LPC2148, programmable to patrol
Collect the fpga chip that unit uses model EP3C55.
PSAM, EEROM and indicator light buzzer are also connected on the processor.
As shown in Fig. 2, the radio frequency unit includes transmit-receive sharing link, emit straight-through link, receive straight-through link and with
The RF switch group of antenna (SMA) connection.
The transmit-receive sharing link includes that sequentially connected radio frequency chip, temperature compensation attenuator, dielectric filter and numerical control decline
Subtract device (DATT), the radio frequency chip is connect with programmable logic cells signal, and numerical-control attenuator connects RF switch group；It is described
SWITCH is additionally provided between radio frequency chip and programmable logic cells.
The transmit-receive sharing link is used as core devices using ETC special-purpose radio-frequency chip RF Circuit (ET6602), leads to
Temperature compensation attenuator and dielectric filter (BPF Filter) are crossed to filter out transmitting and received out-of-band interference, then passes through numerical control attenuation
Device DATT carries out the adjusting of power, and the selection of access is carried out finally by RF switch group.
It is described to emit the wave detector and π type attenuator (ATT) that straight-through link includes connection, the wave detector and processor
The other end of ADC interface connection, π type attenuator connects RF switch group.
The mechanism for emitting straight-through link and using power detection, directly passes through detection for the signal that RF switch group exports
Device (DET ADL5902) carries out detection, and the π type attenuator is placed before detection, and the signal for receiving detection is in inspection
The linearity test region of wave device.
The straight-through link of reception includes signal demodulation access and signal processing access, and the signal demodulation access includes penetrating
Frequency demodulation chip and its peripheral circuit, the radio demodulating chip connect RF switch group, the radio frequency by attenuator (ATT)
Demodulation chip and programmable logic cells two-way communication；The signal processing access include connection difference frequency overlapped-resistable filter and
Difference amplifier, the difference frequency overlapped-resistable filter are put by analog-digital converter and programmable logic cells two-way communication, difference
Big device connects radio demodulating chip.
The analog-digital converter uses ADS62C17 chip, and difference amplifier uses AD8132 chip, the radio demodulating
Chip is using the ML9636 chip for RFID demodulation of OKI company of Japan exploitation, this chip is dedicated for DSRC exploitation.
The RF switch group includes the RF switch (SW) that 3 one end link together, respectively the first RF switch,
One end of second RF switch and third RF switch, the third RF switch connects antenna, is penetrated by antenna and OBU
Frequency communicates, and one end of the first RF switch, the second RF switch and third RF switch is separately connected transmit-receive sharing link, emits
Straight-through link receives straight-through link.
The radio frequency unit is the core of this system, filters out out-of-band interference by temperature compensation attenuator and dielectric filter, is led to
It crosses numerical-control attenuator power is adjusted, and switching through RF switch is emitted, received and the selection of detection access.
The power supply unit includes voltage-stablizer (LDO) and DC/DC converter, and external 5V direct current is inputted through voltage-stablizer LDO
And DC/DC be transformed into control unit and radio frequency unit needed for electricity consumption.
This system further includes current detecting unit and voltage detection unit, realizes Current Voltage detection function, current detecting
Functional purpose is to screen the biggish equipment of quiescent current, directly result in if device sleeps electric current crosses conference using battery capacitor side
Electricity consumption exhausts in the vehicle carried electronic label short time of formula power supply.
As shown in figure 3, the current detecting unit includes dc switch, sampling resistor, sampling resistor and dc switch are simultaneously
Connection, described dc switch one end connect power supply unit, and the other end connects electronic tag.Dc switch when vehicle carried electronic label suspend mode
It disconnects, obtains voltage difference from sampling resistor both ends；Dc switch is closed in normal work, provides smaller DC impedance.
Due to its input range relative narrower, the voltage detection unit includes an operational amplifier (OPA), by voltage sampling point and mould
Driving of the operational amplifier as analog-digital converter ADC is added between number converter ADC, and samples the feed circuit of 1:1
?.
The course of work of this test macro is as follows:
1) this system is attached by Serial Port Line and host computer, while passing through Serial Port Line and RF cable and vehicle electronics
Label is attached, and processor carries out the operation of program downloading by BSL mode to electronic tag to be measured；
2) this system is received by serial ports, parses and distribute the command messages from background application, at this system
After reason request operation, the device of radio frequency unit is controlled, completes every order, and host computer is sent to the life of vehicle carried electronic label
Order passes through electronic tag to be measured；
3) vehicle carried electronic label to be measured is after the order for executing host computer, and this system is by the exectorial result of electronic tag
Return to host computer.
This system is connected and is communicated with host computer and vehicle carried electronic label to be measured by serial ports, while this system and vehicle
Carrying electronic tag also needs to be connected by RF cable, for emitting reception, power detection and spectrum analysis.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention
Protection scope within.
Claims (10)
1. a kind of special-purpose microwave short-range communication test macro, it is characterised in that: including control unit, radio frequency unit, power supply unit,
Described control unit is connect with radio frequency unit, and power supply unit is that control unit and radio frequency unit are powered；
Described control unit is made of processor and programmable logic cells connected to it, the radio frequency unit include with control
The transmit-receive sharing link of unit connection processed, emits straight-through link, receives straight-through link, and the transmit-receive sharing link, transmitting are straight-through
Link and the RF switch group connection for receiving straight-through link and being connect with antenna；
The transmit-receive sharing link includes sequentially connected radio frequency chip, temperature compensation attenuator, dielectric filter and numerical-control attenuator,
The radio frequency chip is connect with programmable logic cells signal, and numerical-control attenuator connects RF switch group；
The straight-through link of transmitting includes that the wave detector of connection and π type attenuator, the wave detector are connect with processor, and π type declines
Subtract the other end connection RF switch group of device；
Described to receive the signal demodulation access and signal processing access that straight-through link includes connection, the signal demodulation access includes
Radio demodulating chip, the radio demodulating chip signal connect RF switch group, the radio demodulating chip and programmable logic
Unit two-way communication；The signal processing access and programmable logic cells two-way communication.
2. special-purpose microwave short-range communication test macro according to claim 1, it is characterised in that: the signal processing access
Difference frequency overlapped-resistable filter and difference amplifier including connection, the difference frequency overlapped-resistable filter pass through analog-digital converter and can
Programmed logic unit two-way communication, difference amplifier connect radio demodulating chip.
3. special-purpose microwave short-range communication test macro according to claim 1, it is characterised in that: the RF switch group packet
The RF switch SW that 3 one end link together is included, respectively the first RF switch, the second RF switch and third radio frequency is opened
It closes, one end of the third RF switch connects antenna, carries out radio communication, the first RF switch, second by antenna and OBU
One end of RF switch and third RF switch is separately connected transmit-receive sharing link, emits straight-through link, receives straight-through link.
4. special-purpose microwave short-range communication test macro according to claim 1, it is characterised in that: the power supply unit includes
Voltage-stablizer and DC/DC converter.
5. special-purpose microwave short-range communication test macro according to claim 1, it is characterised in that: further include current detecting list
Member and voltage detection unit, the current detecting unit include dc switch, sampling resistor, and sampling resistor and dc switch are simultaneously
Connection, described dc switch one end connect power supply unit, and the other end connects electronic tag；The voltage detection unit includes an operation
The operational amplifier is added as the drive of analog-digital converter ADC using between voltage sampling point and analog-digital converter ADC in amplifier
It is dynamic, and sample the feed circuit of 1:1.
6. special-purpose microwave short-range communication test macro according to claim 1, it is characterised in that: also connect on the processor
It is connected to PSAM, EEROM and indicator light buzzer.
7. special-purpose microwave short-range communication test macro according to claim 1, it is characterised in that: the radio demodulating chip
Using the ML9636 chip for RFID demodulation of Japanese OKI company exploitation.
8. special-purpose microwave short-range communication test macro according to claim 1, it is characterised in that: the radio frequency chip and can
SWITCH is additionally provided between programmed logic unit.
9. special-purpose microwave short-range communication test macro according to claim 1, it is characterised in that: the radio frequency chip uses
ET6602 chip.
10. special-purpose microwave short-range communication test macro according to claim 1, it is characterised in that: the processor uses
The arm processor of model LPC2148, programmable logic cells use the fpga chip of model EP3C55.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610374706.3A CN106411425B (en) | 2016-05-30 | 2016-05-30 | A kind of special-purpose microwave short-range communication test macro |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610374706.3A CN106411425B (en) | 2016-05-30 | 2016-05-30 | A kind of special-purpose microwave short-range communication test macro |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106411425A CN106411425A (en) | 2017-02-15 |
| CN106411425B true CN106411425B (en) | 2019-01-15 |
Family
ID=58005508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610374706.3A Active CN106411425B (en) | 2016-05-30 | 2016-05-30 | A kind of special-purpose microwave short-range communication test macro |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106411425B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108011675A (en) * | 2017-11-23 | 2018-05-08 | 重庆华虹电子有限公司 | A kind of OBU production test equipments |
| CN108230468B (en) * | 2017-12-29 | 2020-07-24 | 北京易路行技术有限公司 | Electronic toll collection lane software testing method and system |
| CN108599805B (en) * | 2018-07-06 | 2020-09-18 | 航天恒星科技有限公司 | Forward communication circuit based on baseband and radio frequency integrated design |
| CN115225558B (en) * | 2022-07-12 | 2024-04-02 | 中国人民解放军国防科技大学 | Communication equipment audio test method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090055788A (en) * | 2007-11-29 | 2009-06-03 | 서울통신기술 주식회사 | Road side equipment and method for measuring using the one |
| CN102789654A (en) * | 2012-08-03 | 2012-11-21 | 北京速通科技有限公司 | Method and system for protocol conformance testing of electronic toll collection core equipment |
| CN103236891A (en) * | 2013-04-17 | 2013-08-07 | 北京速通科技有限公司 | System and method for testing dedicated short range communication (DSRC) equipment |
| CN205792608U (en) * | 2016-05-30 | 2016-12-07 | 天津中兴智联科技有限公司 | A kind of special-purpose microwave short-range communication test system |
-
2016
- 2016-05-30 CN CN201610374706.3A patent/CN106411425B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090055788A (en) * | 2007-11-29 | 2009-06-03 | 서울통신기술 주식회사 | Road side equipment and method for measuring using the one |
| CN102789654A (en) * | 2012-08-03 | 2012-11-21 | 北京速通科技有限公司 | Method and system for protocol conformance testing of electronic toll collection core equipment |
| CN103236891A (en) * | 2013-04-17 | 2013-08-07 | 北京速通科技有限公司 | System and method for testing dedicated short range communication (DSRC) equipment |
| CN205792608U (en) * | 2016-05-30 | 2016-12-07 | 天津中兴智联科技有限公司 | A kind of special-purpose microwave short-range communication test system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106411425A (en) | 2017-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106411425B (en) | A kind of special-purpose microwave short-range communication test macro | |
| CN203911933U (en) | ETC roadside unit having radio frequency self-test function | |
| CN104569653B (en) | A kind of password card Auto-Test System | |
| US20100271260A1 (en) | Power-saving position tracking device | |
| CN105022020A (en) | RF electromagnetic field and radio immunity test system and method of electric energy meter | |
| CN107193239A (en) | Ground line signals monitoring method based on Internet of Things NBIOT technologies | |
| CN207219045U (en) | A kind of positional information acquisition terminal and system based on LoRa technologies | |
| CN101315361B (en) | Detection system and method based on wireless network type salinity and temperature | |
| CN207601175U (en) | A kind of non-formula of registering one's residence is visited one house after another examination device | |
| CN103729895A (en) | Method, device and system for awakening electronic tag | |
| CN105007092A (en) | 2.4 GHz wireless communication module supporting WIA-PA standard | |
| CN107395296B (en) | Intelligent monitoring module and monitoring method for short-wave receiving antenna feed system | |
| CN101363887A (en) | Unmanned helicopter-mounted aerial frequency spectrum monitoring system | |
| CN104155530B (en) | Broadband multifunctional portable electromagnetic radiation detecting device | |
| CN103278329A (en) | Portable handheld automobile engine failure prediction instrument | |
| CN208460200U (en) | Wireless geomagnetism parking space intelligent awareness apparatus based on narrowband Internet of Things | |
| CN110068750A (en) | GIS partial discharge superfrequency method based on wireless network monitors system | |
| CN205792608U (en) | A kind of special-purpose microwave short-range communication test system | |
| CN206906295U (en) | A kind of big data information gathering and processing system | |
| CN210776827U (en) | ETC signal on-line monitoring device | |
| CN102152781B (en) | Device and method for detecting braking performance of train vehicle | |
| CN206532314U (en) | Car wheel-set information gathering instrument and car wheel-set information acquisition system | |
| CN205827440U (en) | A kind of ETC track signal supervisory instrument | |
| CN212163722U (en) | Detector based on narrow-band Internet of things communication | |
| CN110099397A (en) | A kind of portable communication network full frequency band depth coverage information acquisition system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 401, building 12, east area, airport business park, No. 80, Huanhe North Road, free trade zone (Airport Economic Zone), Binhai New Area, Tianjin 300000 Patentee after: Gaoxing Zhilian Technology Co.,Ltd. Address before: 300308, Zhongxing Industrial base, 2 East seven, Airport Economic Zone, Tianjin Binhai New Area Patentee before: ZTE INTELLIGENT IOT TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 401, building 12, East Airport Business Park, 80 Huanhe North Road, Tianjin Binhai New Area pilot free trade zone (Airport Economic Zone) Patentee after: Zte Intelligent Iot Technology Co.,Ltd. Address before: Room 401, building 12, East Airport Business Park, 80 Huanhe North Road, Tianjin Binhai New Area pilot free trade zone (Airport Economic Zone) Patentee before: Gaoxing Zhilian Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |