TWM508852U - Wireless throughput tester - Google Patents

Description

Wireless communication throughput test device

This creation is about a communication test device, especially a wireless communication throughput test device.

In recent years, wireless networks have prevailed, and various wireless communication products have appeared in large numbers. Each of them has a faster, more stable, and more efficient communication quality. However, the factors affecting the quality of wireless communication are quite numerous and cannot be deduced through theoretical fineness. Products shipped by various manufacturers usually have to pass a throughput test to prove the communication quality of their products.

The general wireless communication throughput test system includes at least one radio frequency anechoic enclosure, at least one antenna, and a plurality of hosts. The antenna is also disposed in the non-reflective chamber, and the plurality of hosts are set to none. It is reflected outside and connected to the antenna, and performs functions such as data generation, signal transmission and reception, and channel simulation. When measuring the throughput of a DUT, the object to be tested is placed in the non-reflective chamber, and the plurality of hosts are set to generate a signal, which is transmitted from the antenna to the object to be tested after being simulated by the channel, and then The host that receives and receives the signal counts the throughput of the object to be tested and remits the measurement result.

The above wireless communication throughput test system has the following drawbacks:

1. Inconvenient to use, poor operation convenience: When the user changes the channel simulation environment, the attenuator, reset data generator, and even the number of antennas must be changed. Users often have to change The hardware is changed and the respective hosts are operated separately, which causes the user to perform a time-consuming and labor-intensive setting process when changing the channel simulation environment, and the operation convenience is low.

2. Occupy space: In order to avoid the back wall radiation, the antennas installed in the non-reflective room are mostly pointed antennas. Therefore, the intensity of the signal received by the object to be tested is easily affected by the distance. In order to maintain the measurement accuracy, it is usually necessary to maintain the side to be tested. The object is at least 3 to several tens of meters apart from the antenna, so the size of the non-reflecting chamber is usually about the size of a laboratory (5m * 5m * 4m or more), which is quite unfavorable for small and medium-sized companies.

3. Energy consumption: High-gain directional antennas have high power and high power consumption, which consumes a lot of energy.

4. Other electromagnetic interference problems: In the planning of the test, in order to avoid the electromagnetic wave generated during the operation of the measurement system affecting the measurement accuracy, other hosts other than the antenna must be placed outside the non-reflective environment, and still be subject to the external environment or between the host. The influence of electromagnetic waves makes the signal interfered before being fed into the antenna, which still affects the measurement accuracy.

In view of the shortcomings of the existing wireless communication throughput test system, such as low operation convenience, space occupation, energy consumption and electromagnetic interference, the present invention proposes a wireless communication throughput test device to solve the above drawbacks.

To achieve the above objective, the wireless communication throughput testing device comprises: a box having a non-reflecting chamber, a test system housing chamber and a set of electromagnetic isolation chambers; and a low gain pointing antenna group. The main control unit is disposed in the test system housing room of the cabinet, and includes a main controller and a programmable controller, the programmable control The device has a channel analog module, and the programmable controller is electrically connected to the low gain pointing antenna group; A set of data generating units is disposed in the set of electromagnetic isolation chambers of the cabinet and electrically connected to the programmable controller of the main control unit.

The effects of the new wireless communication throughput test device are as follows:

1. Integrated design, simplified architecture: In the architecture of the new wireless communication throughput test device, the programmable controller performs data transmission and reception, channel simulation, switching antennas, and controlling data generation units to reduce the number of hosts. Simplifying the system architecture and reducing the size, the user can also parameterize the programmable controller through the main controller, and the programmable controller can adjust the data generation unit, the antenna and the channel simulation parameters to make the operation Stylized way to improve operational convenience.

2. Space saving: The low gain pointing antenna group shortens the distance between the object to be tested and the antenna group, so that the space without the reflection chamber can be greatly reduced, and the measurement system is miniaturized.

3. Reduce energy consumption: The low gain pointing antenna group also reduces power consumption and saves power.

4. Reduce electromagnetic interference: the low gain pointing antenna group, the main control unit and the data generating unit are isolated, and the electromagnetic wave of the external environment is shielded by the box, which can avoid electromagnetic wave interference between the instruments and avoid external electromagnetic wave interference. Feed the cleanliness of the antenna signal.

10‧‧‧ cabinet

102‧‧‧ computer desk

104‧‧‧ Wheel set

12‧‧‧No reflection room

14‧‧‧Test system accommodation room

16‧‧‧Electromagnetic isolation room

162‧‧‧First electromagnetic isolation room

164‧‧‧Second electromagnetic isolation room

20‧‧‧Low-gain directional antenna group

21‧‧‧Low-gain directional antenna

212‧‧‧Base

214‧‧‧Log Cycle Antenna

2142‧‧‧正信区区

2144‧‧‧ Negative signal area

216‧‧‧ Cover

218‧‧‧ signal line

32‧‧‧Master controller

34‧‧‧Programmable controller

342‧‧‧channel analog module

344, 345‧‧‧Switch Module

42‧‧‧2.4G communication data generator

44‧‧‧5G communication data generator

50‧‧‧Rotating table

60‧‧‧Test object

Figure 1: Schematic diagram of the new wireless communication throughput test device.

Figure 2: Block diagram of the new wireless communication throughput test device system.

Figure 3: Schematic diagram of the circuit diagram of the programmable controller in Figure 2.

Fig. 4 is a perspective view showing the low gain pointing antenna group in Fig. 1.

Figure 5: A plan view of the plane of Figure 4.

Figure 6 is a plan view of the interior of the non-reflective interior of Figure 1.

The following is a detailed description of the novel creation content in conjunction with the drawings.

Referring to FIG. 1 and FIG. 2 , the wireless communication throughput testing device comprises: a box 10 having a non-reflecting chamber 12 , a test system housing chamber 14 and a set of electromagnetic isolation chambers 16 . In this embodiment, the electromagnetic isolation chamber 16 includes a first isolation chamber 162 and a second isolation chamber 164, and the cabinet 10 is further provided with a computer desk 102 for setting a screen and a keyboard, and further the bottom of the cabinet 10 A plurality of wheels 104 are provided to move the casing 10; a low gain directional antenna group 20 is disposed in the non-reflecting chamber 12 of the casing 10. In this embodiment, the low gain directional antenna is provided. The group 20 is preferably a narrow beam low gain ultra-wideband antenna; a main control unit 30 is disposed in the test system housing room 14 of the housing 10 and includes a main controller 32 and a programmable a controller 34, the programmable controller 34 has a channel analog module 342, and the programmable controller 34 is electrically connected to the low gain pointing antenna group 20; a set of data generating unit 40 is disposed in the The set of electromagnetic isolation chambers 16 of the cabinet 10 and the main control unit 30 The programming controller 34 is electrically connected. In this embodiment, the data generating unit 40 includes a 2.4G communication data generator 42 and a 5G communication data generator 44, and the 2.4G communication data generator 42 is disposed therein. In the first isolation chamber 162, the 5G communication data generator 44 is disposed in the second isolation chamber 164.

The wireless communication throughput testing device may further include a rotating table 50 for holding the object to be tested 60. The rotating table 50 is disposed in the non-reflecting chamber 12 of the casing 10, and is electrically connected to the programmable controller 34. Connected, the programmable controller 34 controls the rotation of the rotary table 50 to be tested The object 60 was rotated to a different test angle for testing.

When the operation is performed, the user operates the main controller 32 through an input tool such as a keyboard, and the main controller 32 performs throughput measurement on the programmable controller 34. First, the programmable controller 34 controls the 2.4G. The communication data generator 42 and the 5G communication data generator 44 generate data according to various communication specifications, and input the data into the channel analog module 342 of the programmable controller 34 for signal attenuation, 2.4G communication data generator 42 and 5G. The communication specifications and protocols of the communication data generator 44 can be operated by the user by the main controller 32 and can be set by the programmable controller 34. The parameters of the attenuation can also be controlled by the main controller 32 to the programmable controller 34. The setting is performed, and the attenuated data is input to the low gain directional antenna group 20, and the low gain directional antenna group 20 transmits a wireless signal to the object to be tested 60, and the programmable controller 34 detects the waiting. The wireless signal received by the object 60 is finally counted by the main controller 32, and the wireless signal throughput of the object 60 is measured.

During the above operation, the user operates the programmable controller 34 to control the operation of each unit, so that the overall operation is programmed and the operation convenience is improved.

Please refer to the table below for the existing IEEE 802.11 protocol specifications.

As can be seen from the above table, the wireless communication protocol has evolved from SISO to MIMO, and the single antenna evolves to more Antenna, and the communication frequency band is mainly divided into 2.4G, 5G and both are compatible. Therefore, in order to meet the different protocol communication products, the throughput test must be changed when the number of transceiver antennas and 2.4G and 2.5G data are generated. For the selection of the device, please refer to FIG. 3 again. The novel creation is to achieve the effect of programming the transceiver antenna and the data generator, and further, the complex switching module 344, 345 is disposed in the programmable controller 34. The channel analog module 342 (which is exemplified by four channels in the figure, but not limited thereto) is connected to the 2.4G communication data generator 42 and the 5G communication data generator 44 through the complex switching modules 344 and 345, respectively. The low gain directional antenna group 20 (with four channels, four low gain directional antennas 21 are required), so that the 2.4G communication data generator 42 and/or the 5G communication data can be switched by the programmable controller 34. The data input channel generated by the generator 44 is an analog module 342, and switches the signal input through the channel analog module 342 to input 1 to 4 sets of low gain pointing antennas to conform to IEEE 802.11 a/b/g/n/ac, respectively. Test the spirit. Users can select the communication data specifications and the number of antennas through program control, which is easy to operate.

The programmable controller 34 can be connected to the main controller 32 through a control device such as RS-232. The main controller 32 controls the switching modules 344 and 345 of the programmable controller 34 and the set channel analog module 342. Various parameters.

The antenna design of the novel wireless communication throughput test device is further described below.

In order to reduce the spatial size of the non-reflective chamber and maintain the measurement accuracy, the novel wireless communication throughput test device further designs a low gain directional antenna to replace the traditional high gain horn antenna. The preferred embodiment can narrow the beam with low gain. Ultra-wideband antenna implementation. In the present embodiment, the low-gain directional antenna 21 includes a base 212, a pair of periodic antennas 214, and a second embodiment. The cover 216 and a signal line 218 are disposed on the base 212. The cover 216 is disposed on the base 212 to set the logarithmic period antenna 214 in the cover 216. The signal line is connected to the cover 216. In the present embodiment, the base 212 is a metal piece, and the logarithmic period antenna 214 includes a positive signal area 2142 and a negative signal area 2144. The positive and negative signal areas 2142, 2144 and the signal line 218 is electrically connected, and the size and material of the metal piece are adjusted to achieve the effect of adjusting the beam width of the overall low gain pointing antenna 21. By adjusting the logarithmic period antenna 214, the gain and frequency of the low gain pointing antenna 21 can be adjusted. The effect of the width, and based on the structure revealed by the novel creation, can be adjusted to match the narrow-beam low-gain ultra-wideband antenna of the box size. For the configuration of the antenna, please refer to FIG. 6 . In this embodiment, four low-gain directional antenna arrays are disposed on the inner wall surface of the non-reflective chamber 12 and face the rotating table 50 and the object to be tested 60 . When the antenna is disposed, it is necessary to consider the mutual interference between the antenna patterns and the size of the non-reflecting chamber 12. The low-gain directional antenna can form a region of the object 60 to be formed into a Quiet Zone of at least 20 cm*20 cm, and The length of the non-reflecting chamber 12 of the casing 10 is less than 2m*2m*2m. After the actual experiment, the embodiment can reduce the length, width and height of the casing 10 to 127cm*108cm*108cm, and maintain The static area of 20cm*20cm makes the length, width and height of the whole box can be reduced to 127cm*108cm*195cm, which effectively reduces the volume of the whole machine and takes into account the measurement accuracy.

In the architecture of the new wireless communication throughput test device, the adjustment and setting of the measurement parameters are integrated into the programmable controller, the number of hosts is reduced, and the user can adjust and set the whole machine through the main controller. The operation mode is stylized to improve the convenience of operation. The newly designed low-gain directional antenna group shortens the distance between the object to be tested and the antenna group, so that the space of the non-reflection chamber can be greatly reduced, and the measurement system is miniaturized, and the power consumption is also reduced. Save electricity. Furthermore, the novel creation is in a hardware space configuration, The low gain pointing antenna group, the main control unit and the data generating unit are isolated, and the electromagnetic wave of the external environment is shielded by the box, which can avoid electromagnetic wave interference between the instruments and avoid external electromagnetic wave interference, and improve the feeding of the antenna signal. Cleanliness.

10‧‧‧ cabinet

102‧‧‧ computer desk

104‧‧‧ Wheel set

12‧‧‧No reflection room

14‧‧‧Test system accommodation room

16‧‧‧Electromagnetic isolation room

162‧‧‧First electromagnetic isolation room

164‧‧‧Second electromagnetic isolation room

20‧‧‧Low-gain directional antenna group

32‧‧‧Master controller

34‧‧‧Programmable controller

42‧‧‧2.4G communication data generator

44‧‧‧5G communication data generator

50‧‧‧Rotating table

60‧‧‧Test object

Claims (10)

A wireless communication throughput testing device includes: a box having a non-reflecting chamber, a test system housing chamber, and a set of electromagnetic isolation chambers; and a low gain pointing antenna group disposed in the cabinet The main control unit is disposed in the test system housing room of the cabinet, and includes a main controller and a programmable controller. The programmable controller has a channel analog module. And the programmable controller is electrically connected to the low gain pointing antenna group; a set of data generating units are disposed in the electromagnetic isolation chamber of the box, and can be programmed with the main control unit Electrical connection. The wireless communication throughput testing device of claim 1, further comprising a rotating table disposed in the non-reflecting chamber of the housing and electrically connected to the programmable controller. The wireless communication throughput testing device of claim 1, wherein the electromagnetic isolation chamber comprises a first isolation chamber and a second isolation chamber, the data generation unit comprises a 2.4G communication data generator and a 5G communication data. a generator, and the 2.4G communication data generator is disposed in the first isolation chamber, and the 5G communication data generator is disposed in the second isolation chamber. The wireless communication throughput testing device of claim 1, wherein the non-reflective chamber has a length, width and height dimension of less than 2 meters * 2 meters * 2 meters. The wireless communication throughput testing device of claim 1, wherein the cabinet is further provided with a computer desk, and a plurality of wheel sets are disposed at the bottom of the cabinet. The wireless communication throughput test device of claim 3, wherein the programmable controller is provided with a plurality of switching modules, and the channel analog module is electrically connected to the corresponding 2.4G through the plurality of switching modules, respectively. a communication data generator, the 5G communication data generator, and the low gain pointing antenna group. The wireless communication throughput test apparatus according to claim 1, wherein the low gain directional antenna group is narrow Beam low gain ultra-wideband antenna. The wireless communication throughput test device of claim 1, wherein the low gain directional antenna group comprises a plurality of low gain directional antennas, each low gain directional antenna comprises: a base; and a pair of periodic antennas disposed on the base An outer cover is disposed on the base to set the logarithmic period antenna in the outer cover; a signal line is electrically connected to the logarithmic period antenna. The wireless communication throughput testing device of claim 8, wherein the base is a metal piece. The wireless communication throughput testing device of claim 8, wherein the logarithmic period antenna comprises a positive signal area and a negative signal area, and the positive signal area and the negative signal area are electrically connected to the signal line.