TWM579727U - Receiver blocking test system - Google Patents

Abstract

A receiver blocking test system for testing a device to be tested, the test system comprising: Receiving a blocking test device; a necessary signal generating device connected to the receiving blocking test device and generating a necessary input signal; an interference signal generating device connected to the receiving blocking test device and generating an input-interference signal; a data collecting device Connected to the receiving and blocking test device, a control device, connected to the data collecting device, the receiving and blocking testing device, the necessary signal generating device and the interference signal generating device; and receiving the blocking test device to generate the necessary signal and the interference signal After being mixed, the device is input to the device under test, and the device under test returns a feedback signal to the data collecting device, and the data collecting device transmits the feedback signal and the necessary signal to the control device for comparison and recording.

Description

Receiver blocking test system

This creation is about a test system, especially a receiver blocking test system.

The advancement of technology and the development of technology have led us to break through the shackles of cable and bring us into the increasingly colorful and increasingly convenient wireless world. The convenience of wireless is becoming more and more obvious in work and life.

The ubiquitous communication technology and a wide variety of communication devices have brought great convenience to our lives and work. However, the above communication technologies have certain specifications, such as the acceptance blocking test of the standards EN300328 and EN301893 ( Receiver Blocking), EN303345 and EN303372-2 test test (Blocking), EN301489-7, EN301489-24, EN301489-52 sound pressure test, no matter which kind of communication equipment, there are specific specifications and standards need to pass.

During the above test, there will be a need to input a variety of different signal sources and interference sources. When replacing the signal source or the interference source, it is currently manually replaced. This method is easy to cause wire loss and time consuming, and the replacement is completed. After that, corrections are needed to avoid errors. In addition, the data collection and judgment after the completion of the measurement is currently completed by manpower, and the interpretation and collection by manpower will inevitably cause errors.

Therefore, how to solve the above problems and deficiencies, that is, the creators of the case and the relevant manufacturers engaged in this industry are eager to study the direction of improvement.

To improve the above problems, the present author provides a receiver blocking test system that automatically collects and analyzes test data.

Another main purpose of the present invention is to provide a receiver blocking test system that automatically switches between a signal source and an interference source.

Another primary objective of the present invention is to provide a receiver blocking test system that effectively isolates external sources of interference.

For the above purposes, the present invention provides a receiver blocking test system for testing a device under test, the test system comprising: a receiving blocking test device having at least one first input and at least one second input a control terminal, a first output terminal and a second output terminal are connected to the device to be tested; at least one necessary signal generating device is connected to the first input terminal and generates a necessary signal input to the receiving resistor The at least one interference signal generating device is connected to the second input terminal and generates an interference signal input to the receiving blocking test device; a data collecting device is connected to the first output end; a control device Connecting the data collection device, the control connection end of the reception blocking test device, the necessary signal generation device, and the interference signal generation device; wherein the reception blocking test device mixes the necessary signal and the interference signal Inputting to the device under test, the device under test returns a feedback signal to the data collecting device, and the feedback signal is Necessary control signal is transmitted to the comparing means and recording.

1‧‧‧ receiving blocking test device

11, 11a, 11b, 11c‧‧‧ first input

12, 12a, 12b, 12c‧‧‧ second input

13‧‧‧Control link

14‧‧‧ first output

15‧‧‧second output

16, 16a, 16b, 16c‧‧‧ monitor output

2, 2a, 2b, 2c‧‧‧ necessary signal generating device

3, 3a, 3b, 3c‧‧‧Interference signal generating device

4‧‧‧ data collection device

5‧‧‧Control device

6, 6a, 6b, 6c‧‧‧ monitoring devices

7‧‧‧Shielding enclosure

8‧‧‧Device under test

9‧‧‧Control computer

1 is a block diagram of a first embodiment of the present invention; FIG. 2 is a block diagram of a second embodiment of the present invention; and FIG. 3 is a block diagram of a third embodiment of the present invention; Figure 4 is a block diagram showing the structure of the fourth embodiment of the present invention; Figure 5 is a block diagram showing the structure of the fifth embodiment of the present invention.

The above object of the present invention, as well as its structural and functional features, will be described in accordance with the preferred embodiments of the drawings.

Please refer to FIG. 1 , which is a block diagram of the first embodiment of the present invention. The present invention mainly includes a receiving and blocking test device 1 , a necessary signal generating device 2 , an interference signal generating device 3 , and a data collecting device 4 . a control device 5 and a device under test 8, the device to be tested 8 is a 3G signal receiver, a 4G signal receiver, a wireless local area network signal receiver, a digital television signal receiver and a satellite television Any of the signal receivers.

The receiving and blocking test device 1 has a first input terminal 11 , a second input terminal 12 , a control connection terminal 13 , a first output terminal 14 and a second output terminal 15 . The necessary signal generating device 2 and The first input end 11 is connected, the interference signal generating device 3 is connected to the second input end 12, the control device 5 is connected to the control connecting end 13, and the data collecting device 4 and the first output end 14 are connected. The device under test 8 is connected to the second output terminal 15. The control device 5 is connected to the necessary signal generating device 2, the interference signal generating device 3 and the data collecting device 4.

The necessary signal generating device 2 generates a necessary signal and inputs from the first input terminal 11, and the necessary signal may be a 4G signal, a 3G signal, a wireless local area network signal, a digital television signal, a satellite television signal or an electromagnetic wave signal. The interference signal generating device 3 generates an interference signal and inputs the second interference terminal 12, and the interference signal can be a 4G interference signal, a 3G interference signal, a wireless area network interference signal, a digital television interference signal, a satellite television interference signal, or The electromagnetic wave interference signal, when the necessary signal and the interference signal are input to the receiving and blocking test device 1, the necessary signal and the dry signal are transmitted through the synthesizer The disturbance signal is mixed, and the mixed signal is input to the second output terminal 15. When the device under test 8 receives the mixed signal, a feedback signal is returned to the reception blocking test device 1, and the signal is The feedback signal is input to the data collection device 4, and the data collection device 4 transmits the necessary signal and the feedback signal to the control device 5. The control device 5 has an automatic record comparison program for the data collection device. The feedback signal of 14 and the result of the comparison of the necessary signals are recorded for subsequent inspection.

It should be noted that the necessary signal generating device 2 and the interference signal generating device 3 can arbitrarily replace different types of signal generating devices according to test requirements, and the data collecting device 4 can also be based on the necessary signal generating device 2 and the interference signal generating device. Replace the type of 3 with the corresponding device, such as DAQ (data extractor), R&S CMW500, Anritsu MT8860, R&S BTC (digital broadcasting system) or spectrum analyzer. The above is only a few common specifications, but it is not limited. The type of data collection device 4.

In addition, the control device 5 is not limited to a computer, for example, the control device 5 can control the comparison and automatically collect statistics by the automatic record comparison program, and can also control the receiving and blocking test device 1 and the necessary signal generating device. 2. The working mode of the interference signal generating device 3 and the data collecting device 4 is such that no frequent movements are required during the test to adjust the settings of each instrument, so that the manual adjustment and movement time is omitted during the testing process.

When the test system of the present invention performs the test, the following steps are performed in sequence: 1. The automatic test software in the control device 5 passes the receiving and blocking test device 1 to the necessary signal generating device 2 and the interference signal generating device 3 according to each specification. Calibrate the energy to the device under test 8 and the line loss, and compensate the parameters in the automatic test software; 2. The necessary signal generating device 2 establishes a connection with the device under test 8 and transmits the necessary signals and performs a standard defined working mode. If the connection mode cannot be performed or the standard defined working mode is not performed, the automatic testing software determines whether to proceed. Step or end; 3. During the time when the necessary signal generating device 2 and the device under test 8 are connected, the interference signal generating device 3 inputs the interference signal into the device under test 8, and determines whether to proceed through the automatic testing software. Step or end; 4. The automatic test software sets relevant parameters (such as interference time and measurement time), and controls the reception blocking test device 1 to perform analysis signal comparison and data error rate comparison, and returns to the control device. 5 Recording through the automatic test software; 5. Repeat steps 2~4 above to complete the test list defined by the test specification in sequence; 6. The automatic test software records all the above test results.

Please refer to FIG. 2 , which is a block diagram of the second embodiment of the present invention, and is supplemented with reference to FIG. 1 . This embodiment is substantially the same as the first embodiment, so the details are not repeated, and the embodiment is different. The monitoring device 1 further comprises a monitoring output 16 for the monitoring device 6 to be connected, the control device 5 being connected to the monitoring device 6.

When the test is performed, the necessary signal and the interference signal are transmitted to the monitoring device 6 through the receiving and blocking test device 1, and the intensity and various states of the necessary signal and the interference signal are confirmed by the monitoring device 6, and the control device 5 can also be transmitted through the control device 5. The state of the necessary signal and the interference signal on the monitoring device 6 is directly read and confirmed.

Please refer to FIG. 3, which is a block diagram of the third embodiment of the present invention, and is supplemented with reference to FIG. 1. This embodiment is substantially the same as the first embodiment, so the repetition is not repeated, and the embodiment is different. It The control computer 9 is connected to the device to be tested 8, and the control computer 9 is used to switch the working mode of the device under test 8.

Please refer to FIG. 4 , which is a block diagram of the fourth embodiment of the present invention, and with reference to FIG. 1 , the embodiment is substantially the same as the first embodiment, so the details are not repeated, and the embodiment is different. The device further includes a shielding box 7 for the device to be tested 8 to be disposed, mainly for isolating the external and all unrelated RF signals and noises during the testing process, because the device under test 8 is tested. The counter-request signal will be returned later. In order to prevent the feedback signal from being subjected to external noise, the external noise is insulated through the shielding box 7 to make the test result more accurate.

Please refer to FIG. 5 , which is a block diagram of the fifth embodiment of the present invention, and with reference to the first, second, third, and fourth drawings. This embodiment uses the features of the above embodiments, so the details are not repeated. The maximum difference of this embodiment is that the receiving and blocking test device 1 has a plurality of first input terminals 11a, 11b, 11c, a plurality of second input terminals 12a, 12b, 12c and a plurality of monitoring outputs 16a, 16b, 16c, the first input terminals 11a, 11b, 11c are connected to the necessary signal generating devices 2a, 2b, 2c, and the second input terminals 12a, 12b, 12c are connected to the interference signal generating devices 3a, 3b, 3c, the monitoring output The terminals 16a, 16b, 16c are connected to the monitoring devices 6a, 6b, 6c.

In this embodiment, the necessary signal generating devices 2a, 2b, 2c may be the same type or different types of signals, for example, the necessary signal generating device 2a is a radio signal, the necessary signal generating device 2b is a 4G signal, and the necessary signal generating device 2c is an audio signal, and the interference signal generating devices 3a, 3b, and 3c respectively generate interference radio signals, interference 4G signals, and interference sound signals, and the monitoring devices 6a, 6b, and 6c are instruments for reading radio signals, 4G signals, and audio signals, respectively. In this way, different signal generating devices and monitoring devices can be quickly switched through the automatic record comparison program during the test, the time for rewiring after the test is completed is saved, and all tests of the same type or different types are automatically completed directly. For the purpose of convenience, although the first input terminal, the second input terminal, and the monitoring output terminal in this embodiment are only represented by three, it is not limited thereto, and the number thereof may be arbitrarily increased to make use more. bouncy.

In summary, the creation has the following advantages: 1. Convenient use; 2. Avoiding human error; 3. Easy adjustment; 4. Automatic recording and error correction.

The present invention has been described in detail above, but the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited. That is, all changes and modifications made in accordance with the scope of this creation application shall remain covered by the patents of this creation.

Claims (6)

A receiver blocking test system for testing a device to be tested, the test system comprising: a receiving and blocking test device having at least a first input terminal, at least a second input terminal, a control link end, and a first An output terminal and a second output terminal are connected to the device to be tested; at least one necessary signal generating device is connected to the first input terminal and generates a necessary signal input to the receiving blocking test device; at least one interference signal is generated The device is connected to the second input end and generates an interference signal input to the receiving and blocking test device; a data collecting device is connected to the first output end; a control device is associated with the data collecting device; The control connection end of the blocking test device, the necessary signal generating device and the interference signal generating device are connected; wherein the receiving blocking test device mixes the necessary signal and the interference signal into the device to be tested, and the The measuring device returns a feedback signal to the data collecting device, and the data collecting device transmits the feedback signal and the necessary signal to the control device Line Comparison and records. The receiver blocking test system of claim 1, wherein the receiving and blocking test device further comprises a monitoring output, wherein the monitoring output is connected to a monitoring device and receives the necessary signal to display the necessary signal. Input status. The receiver blocking test system of claim 1, further comprising a shielding box, wherein the device to be tested is disposed in the shielding box. The receiver blocking test system according to claim 1, wherein the device to be tested is connected to a control computer, and the control computer sets an operation mode of the device to be tested. The receiver blocking test system according to claim 1, wherein the control device has an automatic record comparison program for recording the feedback signal of the data collecting device and the result of the comparison of the necessary signals. The receiver blocking test system according to claim 1, wherein the device to be tested is a 3G signal receiver, a 4G signal receiver, a wireless local area network signal receiver, and a digital television signal receiving. Any one of the aircraft and a satellite television signal receiver.