CN2645380Y - Base station transmission measuring set - Google Patents
Base station transmission measuring set Download PDFInfo
- Publication number
- CN2645380Y CN2645380Y CNU032107838U CN03210783U CN2645380Y CN 2645380 Y CN2645380 Y CN 2645380Y CN U032107838 U CNU032107838 U CN U032107838U CN 03210783 U CN03210783 U CN 03210783U CN 2645380 Y CN2645380 Y CN 2645380Y
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- base station
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Abstract
The utility model provides a base station transmission measuring set suitable for PHS personal portable system, comprising a cover with a screen and buttons; a 2M port, an U port and a charging port are arranged on the cover; a processor, a 2M port testing circuit, a distributing circuit, a U port testing circuit, a wire-length testing circuit, a power supply circuit, a battery voltage testing and monitoring circuit, and an interface circuit are arranged in the cover. The utility model has the characters that the base station transmission measuring set is portable and is powered by lithium battery, and can be charged on line, and is convenient for carry and use; the utility model is of menu type interface, key operation, LCD display; the utility model can test the transmission performance of 2M port and U port; the utility model can be used as a test tool for testing the performance of base station system for personal portable system, base station MUX and DEMUX and regenerator.
Description
Technical field
It is relevant that the utility model relates to the base station of PHS personnel hand system, particularly a kind of base station transmits tester.
Background technology
PHS personnel hand system (hereinafter to be referred as PHS) is as wireless access widespread usage in China's public telephone network.Link to each other with u interface between its base station controller and the base station.For network is better covered, base station line sharing device, base station circuit demodulation multiplexer and base station line repeater have been adopted in the PHS system, to extend the transmission range between base station controller and the base station.Base station line sharing device and demodulation multiplexer are the equipment that has u interface and 2.048Mbit/s interface (hereinafter to be referred as the 2M interface) simultaneously.Between base station line sharing device and the base station controller, be u interface between base station circuit demodulation multiplexer and the base station.Multiplexer and demodulation multiplexer are multiplexed into 12 road U mouth signals in base station controller and the base station on the 2.048Mbit/s interface can pass through the optical cable transmission signals, thereby has realized the long Distance Transmission of signal.
Because these access devices do not belong to equipment in the core net, general telecommunication network management system drawn game build-in test equipment is not all included in it detected and management object.Therefore, lack special-purpose testing tool, relatively weak to its maintenance management.Equipment and circuit break down easily, can not in time be found and get rid of in case break down.
Summary of the invention
The technical problems to be solved in the utility model is to be base station line sharing device, base station circuit demodulation multiplexer, and the base station line repeater, interface between base station controller and the base station and line test provide a kind of base station transmits tester.Technical solution of the present utility model is as follows:
A kind of base station transmits tester of the utility model, comprise and have display screen and by strong housing, in this housing, be made up of processor, 2M mouth test circuit, distributor circuit, U mouth test circuit, line length test circuit, power-supply circuit, cell voltage telemetry circuit and interface circuit, wherein all circuit of processor and other all link to each other.2M mouth test circuit connects the 2M port; Distributor circuit connects the U port, and links to each other with the line length test circuit with U mouth test circuit; Charging port connects power-supply circuit, a side joint charging port, another side joint cell voltage telemetry circuit; Interface circuit and display screen and button form the telecommunication transmission relation.
Wherein U mouth test circuit is successively by circuit protection device D21, and two/four line transducer D22 and U mouth signal Acquisition Circuit D23 constitute, and this circuit interrelates by AD bus and processor and interface circuit.
Described 2M mouth test circuit comprises signal isolation circuit D31 successively; obstruct match circuit D32; test protective circuit D33 and 2M mouth signal Acquisition Circuit D34; between the RRING of D33 and D34 and RTIP port, set up HDB3 data input channel by resistor network R1, R3, R4; and between the XRING of D34 and XTIP port and D33, constituting HDB3 data output channel by resistance R 2, R5, R6, this circuit interrelates by AD bus and processor and interface circuit.
Described line length test circuit is made of shaping circuit, signal amplification circuit and A/D change-over circuit, and this circuit interrelates by AD bus and processor and interface circuit.
The advantage and the characteristics of the utility model base station transmits tester are:
1. not only can test the transmission performance of 2.048Mbit/s interface and u interface, but also can send instruction to PHS base station circuit demodulation multiplexer it be implemented performance test, be to solve the effective equipment of PHS base station system test transmission.Because its adopts handheld structure, have simple to operately, practical and characteristics that can correct failure judgement become the indispensable testing tool of telecommunications maintenance department and line crew.
In view of generally adopting 2.048Mbit/s interface and u interface transmission signals in the telecommunications network, therefore, this circuit transmission measuring set can extensive use in telecommunications network.
2 hand-hold type circuit transmission measuring sets are to develop to form on the basis of technology such as Applied Digital communication, computer, A/D (mould/number) conversion and Programmable Logic Device.It has following characteristics:
1) hand-hold type, lithium battery power supply, and can onlinely charge, easy to use and carry;
2) menu mode interface, push-botton operation is easy, and liquid crystal display is directly perceived;
3) can be to 2.048Mbit/s interface and u interface transmission performance test;
4) can be used as the special testing tool of PHS base station system and base station line sharing device, demodulation multiplexer and regenerator transmission performance.
Description of drawings
Fig. 1 is the schematic appearance of the utility model most preferred embodiment.
Fig. 2 is the circuit structure block diagram of the utility model most preferred embodiment.
Fig. 3 is the u interface test circuit figure of the utility model most preferred embodiment.
Fig. 4 is the 2M interface test circuitry figure of the utility model most preferred embodiment.
Fig. 5 is the line length test circuit figure of the utility model most preferred embodiment.
Embodiment
See also Fig. 1 and Fig. 2 earlier, as seen from the figure, the utility model base station transmits tester comprises the housing 3 with display screen 1 and button 2, is the base station transmits tester of a hand-hold type, is the utility model most preferred embodiment.Be characterized in this housing 3, be made up of processor 4,2M mouth test circuit 5, distributor circuit 6, U mouth test circuit 7, line length test circuit 8, power-supply circuit 9, cell voltage telemetry circuit 10 and interface circuit 11, wherein all circuit of processor 4 and other all link to each other.2M mouth test circuit 5 connects 2M port 31; Distributor circuit 6 connects U port 32, and links to each other with line length test circuit 8 with U mouth test circuit 7; Charging port 33 connects power-supply circuit 9, one side joint charging ports 33, another side joint cell voltage telemetry circuit 10; Interface circuit 11 forms the telecommunication transmission relation with display screen 1 and button 2.
The function of the utility model each several part is as follows:
1. distributor circuit 6, realize the u interface circuit is carried out the distribution of interface performance test or line length test;
2.U interface test circuitry 7 is realized collection and preliminary treatment to the u interface data;
3.2M interface test circuitry 5 is realized collection and preliminary treatment to the 2M interface data;
4. the line length test circuit 8, realize the test of symmetrical cable line to length;
5. interface circuit 11, acceptance test personnel button input command and outputing test result;
6. the cell voltage telemetry circuit 10, and monitoring battery voltage is implemented circuit protection when brownout;
7. processor 4, analyze, handle according to the data of input command and collection, the output result;
8. power-supply circuit 9, convert cell voltage the operating voltage of each circuit to, power.
The test process of this base station transmits tester is as follows:
On the U port that tested 2.048Mbit/s interface is connected on the 2M port of tester, tested u interface or line are docked at tester.The test command of button input is delivered to processor control circuit through interface circuit.Processor is handled accordingly according to the content measurement that requires in the order: when receiving test 2.048Mbit/s interface, start the 2.048Mbit/s test circuit, measurand is tested; When receiving the order of test u interface, the notice distributor circuit will be connected on the measurand of U port and receive U mouth test circuit, and startup U test circuit mouth is tested measurand; When receiving measurement circuit length, the notice distributor circuit will be connected on the measurand of U port and receive the line length test circuit, start this test circuit mouth measurand is tested.The test circuit that is activated returns to processor with the data that record.Processor is received the return data of each test circuit, after analyzing, handling, test result is shown by interface circuit output.External charger is connected on the lithium cell charging of charge port to inner power-supply circuit.All circuit that power-supply circuit is changed the back testing instrument with cell voltage are powered.Power-supply circuit is also given the cell voltage telemetry circuit with cell voltage.The cell voltage telemetry circuit is made the electric weight grade to cell voltage and is judged that result of determination is issued processor, and the output of processor notice interface circuit shows the cell voltage grade, or cuts off the power supply of all circuit in the tester when receiving the low-voltage notice.
Fig. 3 is the utility model U mouth test circuit figure, and as seen from the figure, U mouth test circuit (7) is successively by circuit protection device D21, and two/four line transducer D22 and U mouth Acquisition Circuit D23 constitute, wherein:
D21: circuit protection device, when on test line, high voltage being arranged test circuit is shielded, it is made up of coil and voltage-stabiliser tube.
D22: two/four line transducers, outside two wires is converted to inner four lines, form by resistance and transformer.
D23: realize signals collecting and preliminary treatment to the U mouth.
The process of U mouth test circuit test is:
The 2M mouth test circuit 5 of the utility model base station transmits tester as shown in Figure 4; mainly by signal isolation circuit D31, impedance matching circuit D32, test protective circuit D33 and 2M mouth signal Acquisition Circuit D43; between the RRING of D33 and D34 and RTIP port, set up HDB3 data output channel by resistance networking R1, R3, R4; and between the XRING of D34 and XTIP port and D33, constitute HDB3 data output channel by resistance R 2, R5, R6; this 2M mouth signal Acquisition Circuit D34 then interrelates by AD bus and processor 4 and interface circuit 11, wherein:
D31: play isolation, the effect of protection test circuit, the device model can be PE-65854.
D32: realize the impedance matching of test circuit and tested interface, the device model can be T1190.
D33: one group of zener diode, test circuit is implemented protection.
D34: realize signals collecting and preliminary treatment to the 2M mouth, the device model can be BT8370.
According to the order of " the test 2M mouth " of button 2 input and the requirement of " method of synchronization ", processor 4 is worked through chip select line CS3 notice 2M mouth test circuit 5: whether 2M mouth test Acquisition Circuit D34 detects tested interface failure warning, and notifies tested interface rings back into the test of row transmission error code.After Acquisition Circuit D34 carries out preliminary treatment with the signal that collects, send the interruption application, the preliminary treatment result is issued processor 4 through INT alignment processor 4.Processor 4 carries out after the analyzing and processing test result being issued interface circuit 11, shows on display screen 31.
The line length test circuit figure of the utility model base station transmits tester as shown in Figure 5, this line length test circuit 8 is made of shaping circuit, amplifying circuit, A/D change-over circuit, wherein:
D41 and a series of resistance, electric capacity and diode constitute the input signal shaping circuit, and D41 device model is chosen as MAX4200.
D42, D43 and resistance capacitance are formed signal amplification circuit, and the device model can be LF353.
D44 is an A/D converter, and analog signal is transformed into digital signal, and carries out preliminary treatment, and the device model can be ADS774.
The test process of line length is as follows:
According to button 2 input commands of " line length test ", processor 4 will be connected to line length test circuit 8 by holding wire by survey line with distributor circuit control signal C notice distributor circuit 6, be switched to A/D (mould/number) change-over circuit through shaping, amplifying circuit.By shaping circuit from the A line send+the potential test signal, by the right remote loopback of survey line to the B line, amplify, send to A/D (mould/number) conversion D44 through D41 shaping, D42 and D43, after D44 finishes conversion of signals and preliminary treatment, send INT4 to processor 4 and interrupt application, the preliminary treatment result is sent back to processor 4.Processor 4 is analyzed, is handled, and after the line length that calculates the most at last the result is issued imput output circuit, shows.
Described processor 4 is mainly connected to form through AD bus (address date) bus, control bus and other holding wire by processor CPU, Programmable Logic Device CPLD, internal memory, implements the control to other circuit.
Wherein the effect of Programmable Logic Device CPLD is as follows:
● the microprocessor interrupt signal is gathered
● the Microprocessor Interface control signal is handled
● control signal is handled between microprocessor and each several part functional circuit
● address decoding
● various clock signals produce
● data line interface
● produce LED (light-emitting diode) control signal
Through on probation, the utility model base station transmits tester has following function:
1. emulation PHS base station testing
But tester emulation PHS base station is carried out u interface to base station controller, base station circuit demodulation multiplexer and base station line repeater and is activated test, shows physical layer circuit control command (C/I value) and the U mouth state of activation that sends and receive simultaneously.
This function is applicable to that also emulation isdn network termination (NT) activates test to line terminal (LT) u interface.
2. emulation PHS base station controller test
But tester emulation PHS base station controller activates test to the U mouth of base station, base station line sharing device and base station line repeater, and can order 2B+D passage loopback, carry out the transmission error code test, can show test patterns type, length of testing speech and number of bit errors in transmission and the physical layer circuit control command (C/I value) that receives, U mouth state of activation, the B passage.
This function also is applicable to emulation isdn line terminal (LT) to the test of the network terminal (NT) u interface,
3. the voltage supplied test far away of base station controller
But tester testing base station controller and base station line repeater etc. are to the voltage supplied far away of base station.
This function is applicable to that also test I SDN line terminal (LT) is to the network terminal (NT) voltage supplied far away.
4. line length test
Can measure the right loop resistance of tested copper core pair cable line, and, show the length of cable according to cable footpath that is provided with or every kilometer resistance value.
5.2M interface performance test
1) can check line code whether correct;
2) can differentiate that " LOF ", " no-circuit signal " and faults such as " all-ones " take place interface, and show alarm
6. base station circuit demodulation multiplexer network management function is tested
Test has following content to tester to base station circuit demodulation multiplexer network management function, and can preserve 16 up-to-date webmaster message:
1) order base station circuit demodulation multiplexer is set up the corresponding relation of u interface and 2.048Mbit/s interface gateway time slot;
2) u interface of having set up in the circuit demodulation multiplexer of inquiry base station and the corresponding relation of 2.048Mbit/s interface gateway time slot;
3) order base station circuit demodulation multiplexer resets, and reception also shows " resetting " signal of beaming back.
7. base station circuit demodulation multiplexer transmission error code is tested
Test has tester to base station circuit demodulation multiplexer transmission error code:
1) the 64kbit/s passage loopback of appointment in the circuit demodulation multiplexer of order base station carries out the transmission error code test;
2) order base station circuit demodulation multiplexer informing base station u interface loopback carries out the omnidistance error code testing of transmission channel;
It is main shake or phase-locked that test can be provided with tester clock work mode during transmission error code.
Compare with the general test instrument, the advantage of this tester is:
1) can realize test to activation, transmission and the far-end feed function of PHS system base-station, base station controller, base station line sharing device, demodulation multiplexer and regenerator;
2) be a kind of manual testing device that has u interface and 2.048Mbit/s interface testing function simultaneously;
3), provide the foundation of judging line fault except surveying loop resitance and the length that also can measure circuit the interface features.
Claims (4)
1. base station transmits tester, the housing (3) that comprises have display screen (1) and button (2), it is characterized in that on this housing (3), also being provided with 2M port (31), U port (32) and charging port (33), in this housing (3), by processor (4), 2M mouth test circuit (5), distributor circuit (6), U mouth test circuit (7), line length test circuit (8), power-supply circuit (9), cell voltage telemetry circuit (10) and interface circuit (11) are formed, wherein processor (4) all links to each other with other all circuit, and 2M mouth test circuit (5) connects 2M port (31); Distributor circuit (6) connects U port (32), and links to each other with line length test circuit (8) with U mouth test circuit (7); Charging port (33) connects power-supply circuit (9), a side joint charging port (33), another side joint cell voltage telemetry circuit (10); Interface circuit (11) forms the telecommunication transmission relation with display screen (1) and button (2).
2. base station transmits tester according to claim 1; it is characterized in that described U mouth test circuit (7) is successively by circuit protection device D21; two/four line transducer D22 and U mouth signal Acquisition Circuit D23 constitute, and this circuit then interrelates by AD bus and processor (4) and interface circuit (11).
3. base station transmits tester according to claim 1; it is characterized in that described 2M mouth test circuit (5) comprises signal isolation circuit D31 successively; impedance matching circuit D32; test protective circuit D33 and 2M mouth signal Acquisition Circuit D34; between the RRING of D33 and D34 and RTIP port, set up HDB3 data input channel by resistor network R1, R3, R4; and between the XRING of D34 and XTIP port and D33, constitute HDB3 data output channel, and interrelate by AD bus and processor (4) and interface circuit (11) by resistance R 2, R5, R6.
4. according to claim 1 or 2 or 3 described base station transmits testers, it is characterized in that line length test circuit (8) is made of shaping circuit, signal amplification circuit and A/D change-over circuit, this circuit interrelates by AD bus and processor (4) and interface circuit (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032107838U CN2645380Y (en) | 2003-09-19 | 2003-09-19 | Base station transmission measuring set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032107838U CN2645380Y (en) | 2003-09-19 | 2003-09-19 | Base station transmission measuring set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2645380Y true CN2645380Y (en) | 2004-09-29 |
Family
ID=34289482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032107838U Expired - Lifetime CN2645380Y (en) | 2003-09-19 | 2003-09-19 | Base station transmission measuring set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2645380Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102131204A (en) * | 2010-01-19 | 2011-07-20 | 华为技术有限公司 | Base station, system and standing wave detection method |
| CN101557544B (en) * | 2009-05-18 | 2012-04-18 | 北京佳讯飞鸿电气股份有限公司 | Module connecting 2B+D scheduling desks by E1 line and method |
-
2003
- 2003-09-19 CN CNU032107838U patent/CN2645380Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101557544B (en) * | 2009-05-18 | 2012-04-18 | 北京佳讯飞鸿电气股份有限公司 | Module connecting 2B+D scheduling desks by E1 line and method |
| CN102131204A (en) * | 2010-01-19 | 2011-07-20 | 华为技术有限公司 | Base station, system and standing wave detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130919 Granted publication date: 20040929 |