WO2022016591A1 - System and method for testing total connection performance of bluetooth audio device - Google Patents

System and method for testing total connection performance of bluetooth audio device Download PDF

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Publication number
WO2022016591A1
WO2022016591A1 PCT/CN2020/105388 CN2020105388W WO2022016591A1 WO 2022016591 A1 WO2022016591 A1 WO 2022016591A1 CN 2020105388 W CN2020105388 W CN 2020105388W WO 2022016591 A1 WO2022016591 A1 WO 2022016591A1
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bluetooth
omnidirectional
signal
bluetooth audio
connection performance
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PCT/CN2020/105388
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French (fr)
Chinese (zh)
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肖成博
唐伟
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深圳市思讯通信技术有限公司
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Publication of WO2022016591A1 publication Critical patent/WO2022016591A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/29—Performance testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the invention relates to the technical field of Bluetooth device performance testing, in particular to a system and method for omnidirectional connection performance testing of Bluetooth audio devices.
  • the strength of the omnidirectional connection performance of the Bluetooth audio device determines the quality of the user's experience when using the Bluetooth audio device.
  • the omnidirectional connection performance of the Bluetooth audio device is poor, if the user carries the Bluetooth audio away from the mobile phone or intermediate obstacles, etc., which changes the Bluetooth connection performance strength, the connection of the Bluetooth audio device will be affected, resulting in interruption of audio playback or freezing. Reduce the user's interest in use.
  • the existing OTA darkroom test solutions can only test the performance of a single Bluetooth device in DUT mode, but cannot test the performance under actual user conditions.
  • TCSS Total connection signal strength
  • the present invention provides a system and method for testing the omnidirectional connection performance of a Bluetooth audio device.
  • the solution to the technical problem of the present invention is to provide an omnidirectional connection performance testing system for Bluetooth audio equipment, including an omnidirectional motion platform for clamping and driving the Bluetooth audio equipment to move in all directions, audio signal generation and signal acquisition equipment, signal Intensity test system, the audio signal generation and signal acquisition equipment is set at intervals with the omnidirectional motion platform, and the audio signal generation and signal acquisition equipment is used to realize Bluetooth connection with Bluetooth audio equipment, send audio signals to Bluetooth audio equipment and collect Bluetooth The connection performance strength of the audio device is sent to the signal strength testing system in the form of an electrical signal.
  • the Bluetooth audio device omnidirectional connection performance testing system further includes an adapter board, the adapter board is electrically connected to the audio signal generation and signal acquisition equipment and the signal strength test system, respectively, and the adapter board is used for The audio signal generation and the electrical signal of the connection performance strength collected by the signal acquisition device are filtered, amplified and sent to the signal strength test system.
  • the Bluetooth audio device omnidirectional connection performance testing system further includes a platform motion control system
  • the adapter board is electrically connected to the omnidirectional motion platform and the platform motion control system, respectively, and the platform motion control system is used to pass The adapter plate controls the motion of the omnidirectional motion platform.
  • the Bluetooth audio device omnidirectional connection performance testing system further includes a radio frequency shielding room, the omnidirectional motion platform and the audio signal generation and signal acquisition equipment are set in the radio frequency shielding room, the signal strength test system, the adapter board And the platform motion control system is set outside the RF shielding room.
  • the omnidirectional motion platform includes a horizontal turntable, a vertical lift shaft, a vertical shaft and a clamping end, one end of the vertical lift shaft is fixed on the horizontal turntable, and the vertical shaft is fixed on the vertical
  • the horizontal turntable is used to drive the vertical lifting shaft, the vertical rotating shaft and the clamping end to rotate in the horizontal direction.
  • the vertical shaft is used to drive the clamping end to rotate in the vertical direction, and the clamping end is used to clamp the Bluetooth audio device .
  • the distance between the clamping end and the audio signal generation and signal acquisition equipment is 5-10m.
  • the adapter board includes a network filter and a signal amplifier, and the network filter and the signal amplifier are electrically connected.
  • the Bluetooth audio device is a Bluetooth headset or a Bluetooth speaker
  • the Bluetooth audio signal generation and signal acquisition device is a mobile phone or other audio playback device
  • the audio signal generation and signal acquisition device is a microwave communication frequency band of the Bluetooth audio device. Both are Bluetooth bands.
  • the Bluetooth audio device omnidirectional connection performance testing system further includes a screen door, and the screen door is arranged on the outside of the radio frequency shielding room for testers to open and enter the radio frequency shielding room.
  • the present invention also provides a method for testing the omnidirectional connection performance of Bluetooth audio equipment, which utilizes the above-mentioned omnidirectional connection performance testing system for Bluetooth audio equipment, including the following steps:
  • Step S1 pair the Bluetooth audio device with the audio signal generation and signal acquisition device to connect to Bluetooth and play the audio signal normally;
  • Step S2 the platform motion control system controls the omnidirectional motion platform to drive the Bluetooth audio device to move when the Bluetooth audio device is playing normally;
  • Step S3 using computer synchronization to continuously acquire audio signal generation and signal strength of the connection between the signal acquisition device and the Bluetooth audio device at different angles and directions;
  • Step S4 Omnidirectional integral calculation is performed on the acquired signal connection strength by the computer to obtain the omnidirectional connection signal strength value; at the same time, the 3D or 2D omnidirectional signal strength is drawn according to the connection signal strength values of different angles and directions of the Bluetooth audio device. Orientation map.
  • the Bluetooth audio device omnidirectional connection performance testing system of the present invention has the following advantages:
  • the enterprise can carry out data analysis related to the user experience in the product development stage, which is convenient for the R&D personnel to quickly analyze the problem and combine the product development technology.
  • the user experience performance is improved to a better state.
  • the developed products have better connection performance strength, which is conducive to increasing consumers' experience, and the possibility of repurchasing or recommending others to buy, and is conducive to increasing the reputation of the antenna and radio frequency development technology company and the reputation of the end customer company. It is beneficial to expand the production efficiency of the enterprise; the system can also test the connection performance of the two audio devices to be tested when they work together.
  • the omnidirectional connection signal strength obtained by this method will have a significantly higher correlation with the user experience.
  • TCSS Total connection signal strength
  • FIG. 1 is a partial cross-sectional structural schematic diagram of the omnidirectional connection performance testing system for Bluetooth audio equipment according to the present invention.
  • FIG. 2 is a schematic diagram of a specific module connection structure of the omnidirectional connection performance testing system for Bluetooth audio equipment according to the present invention.
  • FIG. 3 is a schematic diagram of a specific module connection structure of an adapter board of the omnidirectional connection performance testing system for Bluetooth audio equipment according to the present invention.
  • the present invention provides a Bluetooth audio device omnidirectional connection performance testing system 10 for testing the omnidirectional connection performance strength of the Bluetooth audio device, including a radio frequency shielding room 11, an omnidirectional motion platform 12 , audio signal generation and signal acquisition equipment 13, adapter board 14, signal strength test system 15 and platform motion control system 16, omnidirectional motion platform 12, audio signal generation and signal acquisition equipment 13 are arranged in the radio frequency shielding room 11 at intervals,
  • the adapter board 14 , the signal strength testing system 15 and the platform motion control system 16 are arranged outside the radio frequency shielding room 11 .
  • the omnidirectional motion platform 12 , the audio signal generation and signal acquisition equipment 13 are respectively electrically connected to the adapter board 14
  • the signal strength testing system 15 and the platform control system are respectively electrically connected to the adapter board 14 .
  • the radio frequency shielding room 11 is used to shield external signals to prevent the influence of external signals on the generation of audio signals and the signal acquisition by the signal acquisition equipment 13; the omnidirectional motion platform 12 is used for clamping and driving the Bluetooth audio equipment to move in all directions.
  • the audio signal generation and signal acquisition device 13 is used to realize Bluetooth connection with the Bluetooth audio device and send audio signals to the Bluetooth audio device.
  • the adapter board 14 is used to The signal is filtered and amplified and sent to the signal strength test system 15; the signal strength test system 15 is used to detect the strength of the electrical signal of the connection performance strength sent from the adapter board 14; the platform motion control system 16 is used for The movement of the omnidirectional motion platform 12 is controlled by the adapter plate 14 so that the Bluetooth audio device can move in all directions.
  • the microwave communication frequency bands of the audio signal generation and signal acquisition device 13 and the Bluetooth audio device are both Bluetooth frequency bands, specifically the ISM band of 2.4-2.485 GHz, that is, the audio signal generation and signal acquisition device 13 is in the Bluetooth audio device. It is more in line with the actual situation and is more conducive to the adjustment of Bluetooth audio devices with weak omnidirectional connection performance.
  • the Bluetooth audio equipment omnidirectional connection performance testing system 10 also includes a screen door 17 and a walking channel 18, and the screen door 17 is arranged on the outside of the radio frequency shielding room 11 for testers to open, enter, install and remove the Bluetooth audio equipment;
  • the pedestrian passage 18 is provided with a first section 181 , a second section 182 and a third section 183 .
  • One end of the first section 181 faces the RF shielding room 11 where the screen door 17 is located, and the other end faces one of the second section 182 .
  • One end of the second section 182 faces one side of the third section 183
  • one end of the third section 183 faces the audio signal generation and signal acquisition device 13
  • the other end faces the omnidirectional motion platform 12 .
  • the second section 182 on the side of the first section 181 facing the second section 182 is provided with a first through hole 184 for the user to pass through, and the third section on the side of the second section 182 facing the third section 183 A second through hole 185 is formed on the 183 , so that the tester can pass through the walking passage 18 in the whole process.
  • the third section 183 faces the audio signal generation and signal acquisition device 13 and the omnidirectional motion platform 12 respectively, the Bluetooth connection state between the omnidirectional motion platform 12 and the audio signal generation and signal acquisition device 13 will not be affected.
  • the Bluetooth audio device is a Bluetooth headset or a Bluetooth speaker, including but not limited to this, it can also be other audio products with Bluetooth function;
  • the audio signal generation and signal acquisition device is a mobile phone, it can be understood that it can also be For other audio playback devices, as long as it can connect with a Bluetooth audio device, send audio signals and collect signal connection strength.
  • the omnidirectional motion platform 12 includes a horizontal turntable 121, a vertical lift shaft 122, a vertical shaft 123 and a clamping end 124.
  • the horizontal turntable 121 is fixedly arranged in the radio frequency shielding room 11, and one end of the vertical lift shaft 122 is arranged at On the horizontal turntable 121 , one end of the vertical rotating shaft 123 is fixedly connected with the vertical lifting shaft 122 , and the other end of the vertical rotating shaft 123 is connected with the clamping end 124 .
  • the horizontal turntable 121 , the vertical lift shaft 122 and the vertical rotation shaft 123 are respectively electrically connected to the adapter plate 14 .
  • the horizontal turntable 121 is used to drive the vertical lifting shaft 122, the vertical rotating shaft 123 and the clamping end 124 to rotate in the horizontal direction
  • the vertical lifting shaft 122 is used to drive the vertical rotating shaft 123 and the clamping end 124 to rise in the vertical direction
  • the vertical shaft 123 is used to drive the clamping end 124 to rotate in the vertical direction
  • the clamping end 124 is used to clamp the Bluetooth audio device.
  • the omnidirectional motion platform 12 can realize the movement of the Bluetooth audio device in all directions.
  • the distance between the clamping end 124 and the audio signal generation and signal acquisition device 13 is 5-10m, and the connection between the Bluetooth audio device at this distance and the audio signal generation and signal acquisition device 13 is not easily interrupted.
  • the adapter board 14 also includes a network filter 141 and a signal amplifier 142, the network filter 141 is electrically connected to the signal amplifier 142, and the network filter 141 is used for the audio signal generation and signal acquisition equipment received by the adapter board 14 13.
  • the electrical signal of the signal connection strength sent is filtered, specifically to filter out the signals with frequencies other than the ISM band of 2.4-2.485 GHz, and the amplifier 142 is used to generate the audio signal filtered by the network filter 141 and send the signal acquisition device 13.
  • the electrical signal of the signal connection strength is amplified and sent to the signal strength test system 15, so that the test result of the signal strength test system 15 is more accurate.
  • the tester opens the screen door 17 and moves to the omnidirectional motion platform 12 through the walking passage 18 to clamp the Bluetooth audio device at the omnidirectional motion platform 12 and turn on the Bluetooth
  • the audio equipment is connected with the audio signal generation and signal acquisition equipment 13, it is moved out of the radio frequency shielding room 11 and the shielding door 17 is closed; the audio signal generation and signal acquisition equipment 13 sends audio signals and collects and collects the connection performance strength of the Bluetooth audio equipment.
  • the form of electrical signal is sent to the signal strength test system 15, and according to the preset setting or the on-site adjustment of the tester, the control platform motion control system 16 adjusts the angle and position of the Bluetooth test equipment, while the audio signal generation and signal acquisition equipment 13
  • the electrical signal of the connection performance strength is sent to the signal strength test system 15 in real time, and the signal strength test system 15 continuously tests the signal connection strength of the Bluetooth audio device at different angles and positions.
  • the tester can also test the same type of Bluetooth audio devices of different brands respectively, and can also understand the difference in omnidirectional signal connection strength between the Bluetooth audio devices of different brands.
  • the tester can intuitively view the signal connection strength of the Bluetooth audio device at different angles and positions on the signal strength test system 15, which is convenient for signal connection.
  • Bluetooth audio devices with weak strength should be adjusted, repaired or scrapped in time, etc., to reduce the possibility of Bluetooth audio devices with weak signal connection strength entering the market, resulting in poor consumer experience, which is conducive to increasing the production efficiency of enterprises.
  • the present invention also provides a method for testing the omnidirectional connection performance of Bluetooth audio equipment, which utilizes the above-mentioned omnidirectional connection performance testing system 10 for Bluetooth audio equipment, including the following steps:
  • Step S1 pair the Bluetooth audio device with the audio signal generation and signal acquisition device 13 for Bluetooth connection and play the audio signal normally;
  • Step S2 the platform motion control system 16 controls the omnidirectional motion platform 12 to drive the Bluetooth audio device to move under the condition that the Bluetooth audio device is playing normally;
  • Step S3 using computer synchronization to continuously obtain the audio signal generation and the signal strength of the connection between the signal acquisition device 13 and the Bluetooth audio device at different angles and directions;
  • Step S4 Omnidirectional integral calculation is performed on the acquired signal connection strength by the computer to obtain the omnidirectional connection signal strength value; at the same time, the 3D or 2D omnidirectional signal strength is drawn according to the connection signal strength values of different angles and directions of the Bluetooth audio device. Orientation map.
  • the Bluetooth audio device can play the audio signal normally by playing the music, call, etc. transmitted by the audio signal generation and signal acquisition device 13.
  • the signal strength test system 15 obtains a connection signal strength; the motion platform control system 16 controls the omnidirectional motion platform 12 to rotate to another angle and direction.
  • the signal strength test system 15 obtains another connection signal strength; when the motion platform control system 16 controls the omnidirectional motion platform 12 to run to another angle and direction, the signal strength test system 15 obtains another connection signal strength.
  • the omnidirectional integral calculation is performed on the signal connection strength and the direction and angle corresponding to the signal connection strength, and finally the omnidirectional connection signal strength is obtained.
  • the Bluetooth audio device omnidirectional connection performance testing system of the present invention has the following advantages:
  • the omnidirectional connection performance test of the Bluetooth audio device is carried out before the Bluetooth audio device leaves the factory, and the Bluetooth audio device with weak omnidirectional connection performance is dealt with in time, such as Debugging or maintenance reduces the possibility that the Bluetooth audio with poor omnidirectional connection performance is purchased by consumers and affects the consumer experience, so that most of the products that leave the factory are products with better omnidirectional connection performance, which is also conducive to increasing the number of consumers. experience, and the possibility of purchasing again or recommending others to buy, which is conducive to increasing the company's reputation and expanding the production efficiency of the enterprise.
  • the omnidirectional connection signal strength obtained by this method will have a significantly higher correlation with the user experience.
  • TCSS Total connection signal strength

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Abstract

The present invention relates to the technical field of Bluetooth device performance tests, and in particular, to a system for testing total connection performance of a Bluetooth audio device. Said system comprises a total motion platform for clamping and driving a Bluetooth audio device to move omnidirectionally, an audio signal generation and signal acquisition device, and a signal strength test system; the audio signal generation and signal acquisition device is spaced apart from the total motion platform; and the audio signal generation and signal acquisition device is used for implementing Bluetooth connection with the Bluetooth audio device, sending an audio signal to the Bluetooth audio device, acquiring connection performance strength of the Bluetooth audio device, and sending, in the form of an electrical signal, the acquired connection performance strength to the signal strength test system. The present invention further provides a method for testing the total connection performance of a Bluetooth audio device. The system for testing the total connection performance of a Bluetooth audio device according to the present invention can test the total connection signal strength of a Bluetooth audio device when the Bluetooth audio device is in normal use, facilitating the improvement of user experience of a Bluetooth audio device.

Description

蓝牙音频设备全向连接性能测试系统及方法Bluetooth audio equipment omnidirectional connection performance testing system and method 【技术领域】【Technical field】
本发明涉及蓝牙设备性能测试技术领域，尤其涉及一种蓝牙音频设备全向连接性能测试系统及方法。The invention relates to the technical field of Bluetooth device performance testing, in particular to a system and method for omnidirectional connection performance testing of Bluetooth audio devices.
【背景技术】【Background technique】
蓝牙音频设备的全向连接性能的强弱，决定了用户在使用该蓝牙音频设备时体验感的好坏。当蓝牙音频设备的全向连接性能较差时，用户携带该蓝牙音频远离手机或中间隔障碍物等改变了蓝牙连接性能强度时即会影响蓝牙音频设备的连接，导致音频播放中断或卡顿，降低了用户的使用兴趣。同时现有的OTA暗室测试方案均只可以测试单个蓝牙设备在DUT模式下的性能，不能测试在实际用户使用条件下的性能。The strength of the omnidirectional connection performance of the Bluetooth audio device determines the quality of the user's experience when using the Bluetooth audio device. When the omnidirectional connection performance of the Bluetooth audio device is poor, if the user carries the Bluetooth audio away from the mobile phone or intermediate obstacles, etc., which changes the Bluetooth connection performance strength, the connection of the Bluetooth audio device will be affected, resulting in interruption of audio playback or freezing. Reduce the user's interest in use. At the same time, the existing OTA darkroom test solutions can only test the performance of a single Bluetooth device in DUT mode, but cannot test the performance under actual user conditions.
若采用原有OTA暗室测试方案，所测试得出的参数与用户体验感关联度会因为音频设备系统并没有完全运行而受到明显的影响。通过本系统的测量，则会测量出一种全新的参数，该参数我们定义为全向连接信号强度(Total connection signal strength)，简称：TCSS，此参数的测量与用户体验关联度会明显增加。If the original OTA darkroom test scheme is used, the correlation between the tested parameters and the user experience will be significantly affected because the audio equipment system is not fully operational. Through the measurement of this system, a brand-new parameter will be measured, which we define as Total connection signal strength (TCSS for short), and the correlation between the measurement of this parameter and the user experience will increase significantly.
因此，在蓝牙音频设备在前期天线与射频系统的研发阶段以及量产前对其进行全向连接性能测试便具有非常重要的意义。本发明基于此而研发。Therefore, it is very important to test the omnidirectional connection performance of Bluetooth audio equipment in the early stage of research and development of antenna and radio frequency system and before mass production. The present invention has been developed based on this.
【发明内容】[Content of the invention]
为克服上述的技术问题，本发明提供了一种蓝牙音频设备全向连接性能测试系统及方法。In order to overcome the above technical problems, the present invention provides a system and method for testing the omnidirectional connection performance of a Bluetooth audio device.
本发明解决技术问题的方案是提供一种蓝牙音频设备全向连接性能测试系统，包括用于夹持并带动蓝牙音频设备在全方向 运动的全向运动平台、音频信号发生及信号采集设备、信号强度测试系统，所述音频信号发生及信号采集设备与全向运动平台间隔设置，所述音频信号发生及信号采集设备用于与蓝牙音频设备实现蓝牙连接、发送音频信号给蓝牙音频设备及采集蓝牙音频设备的连接性能强度并将采集到的连接性能强度以电信号的形式发送给信号强度测试系统。The solution to the technical problem of the present invention is to provide an omnidirectional connection performance testing system for Bluetooth audio equipment, including an omnidirectional motion platform for clamping and driving the Bluetooth audio equipment to move in all directions, audio signal generation and signal acquisition equipment, signal Intensity test system, the audio signal generation and signal acquisition equipment is set at intervals with the omnidirectional motion platform, and the audio signal generation and signal acquisition equipment is used to realize Bluetooth connection with Bluetooth audio equipment, send audio signals to Bluetooth audio equipment and collect Bluetooth The connection performance strength of the audio device is sent to the signal strength testing system in the form of an electrical signal.
优选地，所述蓝牙音频设备全向连接性能测试系统还包括转接板，所述转接板分别与音频信号发生及信号采集设备、信号强度测试系统电性连接，所述转接板用于将音频信号发生及信号采集设备采集的连接性能强度的电信号进行滤波、放大后发送至信号强度测试系统。Preferably, the Bluetooth audio device omnidirectional connection performance testing system further includes an adapter board, the adapter board is electrically connected to the audio signal generation and signal acquisition equipment and the signal strength test system, respectively, and the adapter board is used for The audio signal generation and the electrical signal of the connection performance strength collected by the signal acquisition device are filtered, amplified and sent to the signal strength test system.
优选地，所述蓝牙音频设备全向连接性能测试系统还包括平台运动控制系统，所述转接板分别与全向运动平台及平台运动控制系统电性连接，所述平台运动控制系统用于通过转接板对全向运动平台的运动进行控制。Preferably, the Bluetooth audio device omnidirectional connection performance testing system further includes a platform motion control system, the adapter board is electrically connected to the omnidirectional motion platform and the platform motion control system, respectively, and the platform motion control system is used to pass The adapter plate controls the motion of the omnidirectional motion platform.
优选地，所述蓝牙音频设备全向连接性能测试系统还包括射频屏蔽室，所述全向运动平台与音频信号发生及信号采集设备设置在射频屏蔽室内，所述信号强度测试系统、转接板及平台运动控制系统设置在射频屏蔽室外。Preferably, the Bluetooth audio device omnidirectional connection performance testing system further includes a radio frequency shielding room, the omnidirectional motion platform and the audio signal generation and signal acquisition equipment are set in the radio frequency shielding room, the signal strength test system, the adapter board And the platform motion control system is set outside the RF shielding room.
优选地，所述全向运动平台包括水平转台、竖直升降轴、竖直转轴及夹持端，所述竖直升降轴的一端固定设置在水平转台上，所述竖直转轴固定设置在竖直升降轴的另一端，所述夹持端设置在竖直转轴上，所述水平转台用于带动竖直升降轴、竖直转轴及夹持端在水平方向转动，所述竖直升降轴用于带动竖直转轴及夹持端在竖直方向做上升或下降运动，所述竖直转轴用于带动夹持端在竖直方向转动，所述夹持端用于夹持所述蓝牙音频设备。Preferably, the omnidirectional motion platform includes a horizontal turntable, a vertical lift shaft, a vertical shaft and a clamping end, one end of the vertical lift shaft is fixed on the horizontal turntable, and the vertical shaft is fixed on the vertical The other end of the straight lifting shaft, the clamping end is arranged on the vertical rotating shaft, the horizontal turntable is used to drive the vertical lifting shaft, the vertical rotating shaft and the clamping end to rotate in the horizontal direction. To drive the vertical shaft and the clamping end to move up or down in the vertical direction, the vertical shaft is used to drive the clamping end to rotate in the vertical direction, and the clamping end is used to clamp the Bluetooth audio device .
优选地，所述夹持端与音频信号发生及信号采集设备之间的 距离为5-10m。Preferably, the distance between the clamping end and the audio signal generation and signal acquisition equipment is 5-10m.
优选地，所述转接板包括网络滤波器及信号放大器，所述网络滤波器与信号放大器电性连接。Preferably, the adapter board includes a network filter and a signal amplifier, and the network filter and the signal amplifier are electrically connected.
优选地，所述蓝牙音频设备为蓝牙耳机或蓝牙音箱，所述蓝牙音频信号发生及信号采集设备为手机或其他音频播放设备，所述音频信号发生及信号采集设备与蓝牙音频设备的微波通信频段均为蓝牙频段。Preferably, the Bluetooth audio device is a Bluetooth headset or a Bluetooth speaker, the Bluetooth audio signal generation and signal acquisition device is a mobile phone or other audio playback device, and the audio signal generation and signal acquisition device is a microwave communication frequency band of the Bluetooth audio device. Both are Bluetooth bands.
优选地，所述蓝牙音频设备全向连接性能测试系统还包括屏蔽门，所述屏蔽门设置在射频屏蔽室外侧上用于测试人员的开启及进入射频屏蔽室内。Preferably, the Bluetooth audio device omnidirectional connection performance testing system further includes a screen door, and the screen door is arranged on the outside of the radio frequency shielding room for testers to open and enter the radio frequency shielding room.
本发明还提供一种蓝牙音频设备全向连接性能测试方法，其利用如上述的蓝牙音频设备全向连接性能测试系统，包括如下步骤：The present invention also provides a method for testing the omnidirectional connection performance of Bluetooth audio equipment, which utilizes the above-mentioned omnidirectional connection performance testing system for Bluetooth audio equipment, including the following steps:
步骤S1：将蓝牙音频设备与音频信号发生及信号采集设备配对蓝牙连接并正常播放音频信号；Step S1: pair the Bluetooth audio device with the audio signal generation and signal acquisition device to connect to Bluetooth and play the audio signal normally;
步骤S2：平台运动控制系统控制全向运动平台在蓝牙音频设备正常播放的情况下带动蓝牙音频设备进行运动；Step S2: the platform motion control system controls the omnidirectional motion platform to drive the Bluetooth audio device to move when the Bluetooth audio device is playing normally;
步骤S3：采用计算机同步连续获取音频信号发生及信号采集设备与蓝牙音频设备在不同角度和方向上的连接信号强度；Step S3: using computer synchronization to continuously acquire audio signal generation and signal strength of the connection between the signal acquisition device and the Bluetooth audio device at different angles and directions;
步骤S4：将计算机对已经获取的信号连接强度进行全向积分计算,获得全向连接信号强度值；同时根据蓝牙音频设备不同的角度和方向的连接信号强度值绘制全向信号强度的3D或2D方向图。Step S4: Omnidirectional integral calculation is performed on the acquired signal connection strength by the computer to obtain the omnidirectional connection signal strength value; at the same time, the 3D or 2D omnidirectional signal strength is drawn according to the connection signal strength values of different angles and directions of the Bluetooth audio device. Orientation map.
相对于现有技术，本发明的蓝牙音频设备全向连接性能测试系统具有如下优点：Compared with the prior art, the Bluetooth audio device omnidirectional connection performance testing system of the present invention has the following advantages:
通过在产品研发阶段对蓝牙音频设备进行全向连接性能测试,能够对企业在产品研发阶段进行与用户体验感相关的数据化分析,便于研发人员能够快速分析问题所在,结合产品开发技术 将该产品的用户体验性能提升到较佳的状态。使得研发的产品具备较佳的连接性能强度，有利于增加消费者的体验感、及再次购买或推荐他人购买的可能性，有利于增加天线与射频开发技术公司的声誉及终端客户公司的声誉，利于扩大企业的生产效益；该系统还可以同时测试两台待测音频设备在协同工作时的连接性能。Through the omnidirectional connection performance test of the Bluetooth audio device in the product development stage, the enterprise can carry out data analysis related to the user experience in the product development stage, which is convenient for the R&D personnel to quickly analyze the problem and combine the product development technology. The user experience performance is improved to a better state. The developed products have better connection performance strength, which is conducive to increasing consumers' experience, and the possibility of repurchasing or recommending others to buy, and is conducive to increasing the reputation of the antenna and radio frequency development technology company and the reputation of the end customer company. It is beneficial to expand the production efficiency of the enterprise; the system can also test the connection performance of the two audio devices to be tested when they work together.
相较于原有的OTA暗室测试方案，通过该方法获得的全向连接信号强度，与用户体验的关联度会有较明显的增加。通过本系统的测量，会测量出一种全新的参数，该参数我们定义为全向连接信号强度(Total connection signal strength)，简称：TCSS，同时可以根据不同角度和方向的连接信号强度，绘制全向信号强度3D或2D方向图。Compared with the original OTA darkroom test solution, the omnidirectional connection signal strength obtained by this method will have a significantly higher correlation with the user experience. Through the measurement of this system, a brand-new parameter will be measured, which we define as Total connection signal strength (TCSS for short), and can be drawn according to the connection signal strength at different angles and directions. 3D or 2D pattern of signal strength.
【附图说明】【Description of drawings】
图1是本发明蓝牙音频设备全向连接性能测试系统的部分剖面结构示意图。FIG. 1 is a partial cross-sectional structural schematic diagram of the omnidirectional connection performance testing system for Bluetooth audio equipment according to the present invention.
图2是本发明蓝牙音频设备全向连接性能测试系统的具体模块连接结构示意图。2 is a schematic diagram of a specific module connection structure of the omnidirectional connection performance testing system for Bluetooth audio equipment according to the present invention.
图3是本发明蓝牙音频设备全向连接性能测试系统的转接板一具体模块连接结构示意图。3 is a schematic diagram of a specific module connection structure of an adapter board of the omnidirectional connection performance testing system for Bluetooth audio equipment according to the present invention.
附图标记说明：Description of reference numbers:
10、蓝牙音频设备全向连接性能测试系统；11、射频屏蔽室；12、全向运动平台；13、音频信号发生及信号采集设备；14、转接板；15、信号强度测试系统；16、平台运动控制系统；17、屏蔽门；18、步行通道；181、第一节；182、第二节；183、第三节；184、第一通孔；185、第二通孔；121、水平转台；122、竖直升降轴；123、竖直转轴；124、夹持端；141、网络滤波器；142、放大器。10. Bluetooth audio equipment omnidirectional connection performance test system; 11. RF shielding room; 12. Omnidirectional motion platform; 13. Audio signal generation and signal acquisition equipment; 14. Adapter board; 15. Signal strength test system; 16. Platform motion control system; 17, screen door; 18, pedestrian passage; 181, first section; 182, second section; 183, third section; 184, first through hole; 185, second through hole; 121, horizontal Turntable; 122, vertical lifting shaft; 123, vertical rotating shaft; 124, clamping end; 141, network filter; 142, amplifier.
【具体实施方式】【detailed description】
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施实例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用于解释本发明，并不用于限定本发明。In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
请参阅图1-图3,本发明提供一种蓝牙音频设备全向连接性能测试系统10，用于对蓝牙音频设备进行全向连接性能强度进行测试，包括射频屏蔽室11、全向运动平台12、音频信号发生及信号采集设备13、转接板14、信号强度测试系统15及平台运动控制系统16，全向运动平台12、音频信号发生及信号采集设备13间隔设置在射频屏蔽室11内，转接板14、信号强度测试系统15及平台运动控制系统16设置在射频屏蔽室11外。全向运动平台12、音频信号发生及信号采集设备13分别与转接板14电性连接，信号强度测试系统15及平台控制系统分别与转接板14电性连接。1-3, the present invention provides a Bluetooth audio device omnidirectional connection performance testing system 10 for testing the omnidirectional connection performance strength of the Bluetooth audio device, including a radio frequency shielding room 11, an omnidirectional motion platform 12 , audio signal generation and signal acquisition equipment 13, adapter board 14, signal strength test system 15 and platform motion control system 16, omnidirectional motion platform 12, audio signal generation and signal acquisition equipment 13 are arranged in the radio frequency shielding room 11 at intervals, The adapter board 14 , the signal strength testing system 15 and the platform motion control system 16 are arranged outside the radio frequency shielding room 11 . The omnidirectional motion platform 12 , the audio signal generation and signal acquisition equipment 13 are respectively electrically connected to the adapter board 14 , and the signal strength testing system 15 and the platform control system are respectively electrically connected to the adapter board 14 .
射频屏蔽室11用于屏蔽外界的信号，防止外界信号对音频信号发生及信号采集设备13对信号采集的影响；全向运动平台12用于夹持并带动蓝牙音频设备在全方向上进行运动，以便于音频信号发生及信号采集设备13对蓝牙音频设备在全方向上的连接性能强度的采集；音频信号发生及信号采集设备13用于与蓝牙音频设备实现蓝牙连接、发送音频信号给蓝牙音频设备及采集蓝牙音频设备的连接性能强度，同时将采集到的连接性能强度以电信号的形式通过转接板14发送给信号强度测试系统15；转接板14用于将接收的连接性能强度的电信号进行滤波、放大后发送给信号强度测试系统15；信号强度测试系统15用于对从转接板14处发送来的连接性能强度的电信号的强弱进行检测；平台运动控制系统16用于通过转接板14对全向运动平台12的运 动进行控制以实现蓝牙音频设备可在全方向上运动。The radio frequency shielding room 11 is used to shield external signals to prevent the influence of external signals on the generation of audio signals and the signal acquisition by the signal acquisition equipment 13; the omnidirectional motion platform 12 is used for clamping and driving the Bluetooth audio equipment to move in all directions. In order to facilitate the audio signal generation and signal acquisition device 13 to collect the connection performance strength of the Bluetooth audio device in all directions; the audio signal generation and signal acquisition device 13 is used to realize Bluetooth connection with the Bluetooth audio device and send audio signals to the Bluetooth audio device. and collect the connection performance strength of the Bluetooth audio device, and at the same time send the collected connection performance strength in the form of an electrical signal to the signal strength test system 15 through the adapter board 14; the adapter board 14 is used to The signal is filtered and amplified and sent to the signal strength test system 15; the signal strength test system 15 is used to detect the strength of the electrical signal of the connection performance strength sent from the adapter board 14; the platform motion control system 16 is used for The movement of the omnidirectional motion platform 12 is controlled by the adapter plate 14 so that the Bluetooth audio device can move in all directions.
优选地，音频信号发生及信号采集设备13与蓝牙音频设备的微波通信频段均为蓝牙频段，具体为2.4—2.485GHz的ISM波段，即音频信号发生及信号采集设备13是在蓝牙音频设备正常工作时采集的连接性能强度，模拟检测蓝牙音频设备在实际工作中被用户使用时的全向连接性能强度，更符合实际情况，更利于对全向连接性能强度较弱的蓝牙音频设备进行调校。Preferably, the microwave communication frequency bands of the audio signal generation and signal acquisition device 13 and the Bluetooth audio device are both Bluetooth frequency bands, specifically the ISM band of 2.4-2.485 GHz, that is, the audio signal generation and signal acquisition device 13 is in the Bluetooth audio device. It is more in line with the actual situation and is more conducive to the adjustment of Bluetooth audio devices with weak omnidirectional connection performance.
进一步地，蓝牙音频设备全向连接性能测试系统10还包括屏蔽门17及步行通道18，屏蔽门17设置在射频屏蔽室11外侧上，用于测试人员开启、进入安装及拆卸下蓝牙音频设备；步行通道18设置有第一节181、第二节182及第三节183，所述第一节181的一端正对屏蔽门17所在的射频屏蔽室11，另一端对着第二节182的一侧，第二节182的一端对着第三节183的一侧，第三节183一端正对于音频信号发生及信号采集设备13，另一端正对于全向运动平台12。可以理解在第一节181对着第二节182一侧的第二节182上开设有用于用户通过的第一通孔184，在第二节182对着第三节183一侧的第三节183上开设有第二通孔185，如此，测试人员可全程在步行通道18中通过。且由于第三节183分别对着音频信号发生及信号采集设备13与全向运动平台12，因此不会影响到位于全向运动平台12与音频信号发生及信号采集设备13之间蓝牙连接状态。Further, the Bluetooth audio equipment omnidirectional connection performance testing system 10 also includes a screen door 17 and a walking channel 18, and the screen door 17 is arranged on the outside of the radio frequency shielding room 11 for testers to open, enter, install and remove the Bluetooth audio equipment; The pedestrian passage 18 is provided with a first section 181 , a second section 182 and a third section 183 . One end of the first section 181 faces the RF shielding room 11 where the screen door 17 is located, and the other end faces one of the second section 182 . One end of the second section 182 faces one side of the third section 183 , one end of the third section 183 faces the audio signal generation and signal acquisition device 13 , and the other end faces the omnidirectional motion platform 12 . It can be understood that the second section 182 on the side of the first section 181 facing the second section 182 is provided with a first through hole 184 for the user to pass through, and the third section on the side of the second section 182 facing the third section 183 A second through hole 185 is formed on the 183 , so that the tester can pass through the walking passage 18 in the whole process. And because the third section 183 faces the audio signal generation and signal acquisition device 13 and the omnidirectional motion platform 12 respectively, the Bluetooth connection state between the omnidirectional motion platform 12 and the audio signal generation and signal acquisition device 13 will not be affected.
在本发明中，蓝牙音频设备为蓝牙耳机或蓝牙音箱，包括但不限于此，其也可为其他具有蓝牙功能的音频产品；音频信号发生及信号采集设备为手机,可以理解,其也可为其他音频播放设备,只要能满足与蓝牙音频设备连接并发送音频信号及采集信号连接强度即可。In the present invention, the Bluetooth audio device is a Bluetooth headset or a Bluetooth speaker, including but not limited to this, it can also be other audio products with Bluetooth function; the audio signal generation and signal acquisition device is a mobile phone, it can be understood that it can also be For other audio playback devices, as long as it can connect with a Bluetooth audio device, send audio signals and collect signal connection strength.
进一步地，全向运动平台12包括水平转台121、竖直升降轴122、竖直转轴123及夹持端124，水平转台121固定设置在 射频屏蔽室11中，竖直升降轴122的一端设置在水平转台121上，竖直转轴123的一端与竖直升降轴122固定连接，竖直转轴123的另一端与夹持端124连接。水平转台121、竖直升降轴122及竖直转轴123分别与转接板14电性连接。水平转台121用于带动竖直升降轴122、竖直转轴123及夹持端124在水平方向上转动，竖直升降轴122用于带动竖直转轴123及夹持端124在竖直方向上上升或下降，竖直转轴123用于带动夹持端124在竖直方向上转动，夹持端124用于夹持蓝牙音频设备。如此，在平台运动控制系统16的控制下，全向运动平台12可实现蓝牙音频设备在全方向上运动。Further, the omnidirectional motion platform 12 includes a horizontal turntable 121, a vertical lift shaft 122, a vertical shaft 123 and a clamping end 124. The horizontal turntable 121 is fixedly arranged in the radio frequency shielding room 11, and one end of the vertical lift shaft 122 is arranged at On the horizontal turntable 121 , one end of the vertical rotating shaft 123 is fixedly connected with the vertical lifting shaft 122 , and the other end of the vertical rotating shaft 123 is connected with the clamping end 124 . The horizontal turntable 121 , the vertical lift shaft 122 and the vertical rotation shaft 123 are respectively electrically connected to the adapter plate 14 . The horizontal turntable 121 is used to drive the vertical lifting shaft 122, the vertical rotating shaft 123 and the clamping end 124 to rotate in the horizontal direction, and the vertical lifting shaft 122 is used to drive the vertical rotating shaft 123 and the clamping end 124 to rise in the vertical direction Or down, the vertical shaft 123 is used to drive the clamping end 124 to rotate in the vertical direction, and the clamping end 124 is used to clamp the Bluetooth audio device. In this way, under the control of the platform motion control system 16, the omnidirectional motion platform 12 can realize the movement of the Bluetooth audio device in all directions.
优选地，夹持端124与音频信号发生及信号采集设备13之间的距离为5-10m，位于这个距离的蓝牙音频设备与音频信号发生及信号采集设备13之间的连接不易轻易中断。Preferably, the distance between the clamping end 124 and the audio signal generation and signal acquisition device 13 is 5-10m, and the connection between the Bluetooth audio device at this distance and the audio signal generation and signal acquisition device 13 is not easily interrupted.
进一步地，转接板14还包括网络滤波器141及信号放大器142，网络滤波器141与信号放大器142电性连接，网络滤波器141用于对转接板14接收的音频信号发生及信号采集设备13发送的信号连接强度的电信号进行过滤，具体滤除2.4—2.485GHz的ISM波段之外频率的信号，放大器142用于将经网络滤波器141过滤后的音频信号发生及信号采集设备13发送的信号连接强度的电信号放大并发送至信号强度测试系统15，以便信号强度测试系统15测试的结果更为准确。Further, the adapter board 14 also includes a network filter 141 and a signal amplifier 142, the network filter 141 is electrically connected to the signal amplifier 142, and the network filter 141 is used for the audio signal generation and signal acquisition equipment received by the adapter board 14 13. The electrical signal of the signal connection strength sent is filtered, specifically to filter out the signals with frequencies other than the ISM band of 2.4-2.485 GHz, and the amplifier 142 is used to generate the audio signal filtered by the network filter 141 and send the signal acquisition device 13. The electrical signal of the signal connection strength is amplified and sent to the signal strength test system 15, so that the test result of the signal strength test system 15 is more accurate.
当该蓝牙音频设备全向连接性能测试系统10在使用时，测试人员打开屏蔽门17通过步行通道18移至全向运动平台12处将蓝牙音频设备夹持在全向运动平台12处并开启蓝牙音频设备使之与音频信号发生及信号采集设备13蓝牙连接后移出射频屏蔽室11并关上屏蔽门17；音频信号发生及信号采集设备13发送音频信号并采集采集蓝牙音频设备的连接性能强度并以电信号的形式发送给信号强度测试系统15，根据预先的设定或测试 人员的现场调节，控制平台运动控制系统16对蓝牙测试设备的角度、位置进行调节，同时音频信号发生及信号采集设备13实时发送连接性能强度的电信号给信号强度测试系统15，信号强度测试系统15不断地对蓝牙音频设备处于不同角度、位置时的信号连接强度进行测试。可以理解，测试人员也可对同一类型的不同品牌的蓝牙音频设备分别进行测试，也可以对了解不同品牌的蓝牙音频设备在全向信号连接强度方面的差异。When the Bluetooth audio device omnidirectional connection performance testing system 10 is in use, the tester opens the screen door 17 and moves to the omnidirectional motion platform 12 through the walking passage 18 to clamp the Bluetooth audio device at the omnidirectional motion platform 12 and turn on the Bluetooth After the audio equipment is connected with the audio signal generation and signal acquisition equipment 13, it is moved out of the radio frequency shielding room 11 and the shielding door 17 is closed; the audio signal generation and signal acquisition equipment 13 sends audio signals and collects and collects the connection performance strength of the Bluetooth audio equipment. The form of electrical signal is sent to the signal strength test system 15, and according to the preset setting or the on-site adjustment of the tester, the control platform motion control system 16 adjusts the angle and position of the Bluetooth test equipment, while the audio signal generation and signal acquisition equipment 13 The electrical signal of the connection performance strength is sent to the signal strength test system 15 in real time, and the signal strength test system 15 continuously tests the signal connection strength of the Bluetooth audio device at different angles and positions. It can be understood that the tester can also test the same type of Bluetooth audio devices of different brands respectively, and can also understand the difference in omnidirectional signal connection strength between the Bluetooth audio devices of different brands.
通过该蓝牙音频设备全向连接性能测试系统10的测试，测试人员可对蓝牙音频设备所处不同角度、位置时的信号连接强度在信号强度测试系统15上较为直观地查看到，便于对信号连接强度较弱的蓝牙音频设备进行及时调校、维修或做报废处理等，降低信号连接强度较弱的蓝牙音频设备流入市场从而导致消费者体验感较差的可能性，有利于增加企业生产效益。Through the test of the Bluetooth audio device omnidirectional connection performance test system 10, the tester can intuitively view the signal connection strength of the Bluetooth audio device at different angles and positions on the signal strength test system 15, which is convenient for signal connection. Bluetooth audio devices with weak strength should be adjusted, repaired or scrapped in time, etc., to reduce the possibility of Bluetooth audio devices with weak signal connection strength entering the market, resulting in poor consumer experience, which is conducive to increasing the production efficiency of enterprises.
本发明还提供一种蓝牙音频设备全向连接性能测试方法，其利用上述的蓝牙音频设备全向连接性能测试系统10，包括如下步骤：The present invention also provides a method for testing the omnidirectional connection performance of Bluetooth audio equipment, which utilizes the above-mentioned omnidirectional connection performance testing system 10 for Bluetooth audio equipment, including the following steps:
步骤S1：将蓝牙音频设备与音频信号发生及信号采集设备13配对蓝牙连接并正常播放音频信号；Step S1: pair the Bluetooth audio device with the audio signal generation and signal acquisition device 13 for Bluetooth connection and play the audio signal normally;
步骤S2：平台运动控制系统16控制全向运动平台12在蓝牙音频设备正常播放的情况下带动蓝牙音频设备进行运动；Step S2: the platform motion control system 16 controls the omnidirectional motion platform 12 to drive the Bluetooth audio device to move under the condition that the Bluetooth audio device is playing normally;
步骤S3：采用计算机同步连续获取音频信号发生及信号采集设备13与蓝牙音频设备在不同角度和方向上的连接信号强度；Step S3: using computer synchronization to continuously obtain the audio signal generation and the signal strength of the connection between the signal acquisition device 13 and the Bluetooth audio device at different angles and directions;
步骤S4：将计算机对已经获取的信号连接强度进行全向积分计算,获得全向连接信号强度值；同时根据蓝牙音频设备不同的角度和方向的连接信号强度值绘制全向信号强度的3D或2D方向图。Step S4: Omnidirectional integral calculation is performed on the acquired signal connection strength by the computer to obtain the omnidirectional connection signal strength value; at the same time, the 3D or 2D omnidirectional signal strength is drawn according to the connection signal strength values of different angles and directions of the Bluetooth audio device. Orientation map.
可以理解,蓝牙音频设备可通过播放音频信号发生及信号采 集设备13传送的音乐、通话等以实现正常播放音频信号。It can be understood that the Bluetooth audio device can play the audio signal normally by playing the music, call, etc. transmitted by the audio signal generation and signal acquisition device 13.
运动平台控制系统16控制全向运动平台12运转至一角度、方向上时，信号强度测试系统15获取一连接信号强度；运动平台控制系统16控制全向运动平台12运转至另一角度、方向上时，信号强度测试系统15获取另一连接信号强度；运动平台控制系统16控制全向运动平台12运转至又一角度、方向上时，信号强度测试系统15获取又一连接信号强度…对获取的信号连接强度及信号连接强度对应的方向、角度进行全向积分计算，最终获得全向连接信号强度。When the motion platform control system 16 controls the omnidirectional motion platform 12 to rotate to an angle and direction, the signal strength test system 15 obtains a connection signal strength; the motion platform control system 16 controls the omnidirectional motion platform 12 to rotate to another angle and direction. When the signal strength test system 15 obtains another connection signal strength; when the motion platform control system 16 controls the omnidirectional motion platform 12 to run to another angle and direction, the signal strength test system 15 obtains another connection signal strength. The omnidirectional integral calculation is performed on the signal connection strength and the direction and angle corresponding to the signal connection strength, and finally the omnidirectional connection signal strength is obtained.
相对于现有技术，本发明的蓝牙音频设备全向连接性能测试系统具有如下优点：Compared with the prior art, the Bluetooth audio device omnidirectional connection performance testing system of the present invention has the following advantages:
通过在产品研发阶段对蓝牙音频设备进行全向性能测试,以在蓝牙音频设备出厂前对蓝牙音频设备进行全向的连接性能检测,对全向连接性能强度较弱的蓝牙音频设备进行及时处理如调试或维修，降低了全向连接性能较差的蓝牙音频被消费者购买到进而影响消费者体验感的可能性，使得出厂的产品多为全向连接性能强度较佳的产品也利于增加消费者的体验感、及再次购买或推荐他人购买的可能性，有利于增加公司的声誉、利于扩大企业的生产效益。Through the omnidirectional performance test of the Bluetooth audio device in the product development stage, the omnidirectional connection performance test of the Bluetooth audio device is carried out before the Bluetooth audio device leaves the factory, and the Bluetooth audio device with weak omnidirectional connection performance is dealt with in time, such as Debugging or maintenance reduces the possibility that the Bluetooth audio with poor omnidirectional connection performance is purchased by consumers and affects the consumer experience, so that most of the products that leave the factory are products with better omnidirectional connection performance, which is also conducive to increasing the number of consumers. experience, and the possibility of purchasing again or recommending others to buy, which is conducive to increasing the company's reputation and expanding the production efficiency of the enterprise.
相较于原有的OTA暗室测试方案，通过该方法获得的全向连接信号强度，与用户体验的关联度会有较明显的增加。通过本系统的测量，会测量出一种全新的参数，该参数我们定义为全向连接信号强度(Total connection signal strength)，简称：TCSS，同时可以根据不同角度和方向的连接信号强度，绘制全向信号强度3D或2D方向图。Compared with the original OTA darkroom test solution, the omnidirectional connection signal strength obtained by this method will have a significantly higher correlation with the user experience. Through the measurement of this system, a brand-new parameter will be measured, which we define as Total connection signal strength (TCSS for short), and can be drawn according to the connection signal strength at different angles and directions. 3D or 2D pattern of signal strength.
以上所述仅为本发明的较佳实施例，并非因此限制本发明的专利范围，凡是在本发明的构思之内所作的任何修改，等同替换和改进等均应包含在本发明的专利保护范围内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of the patent of the present invention. Any modifications, equivalent replacements and improvements made within the concept of the present invention shall be included in the scope of patent protection of the present invention. Inside.

Claims (10)

  1. 一种蓝牙音频设备全向连接性能测试系统，用于测量蓝牙音频设备的连接性能，其特征在于：所述蓝牙音频设备全向连接性能测试系统包括用于夹持并带动蓝牙音频设备在全方向运动的全向运动平台、音频信号发生及信号采集设备以及信号强度测试系统，所述音频信号发生及信号采集设备与全向运动平台间隔设置，所述音频信号发生及信号采集设备用于与蓝牙音频设备实现蓝牙连接、发送音频信号给蓝牙音频设备及采集蓝牙音频设备的连接性能强度并将采集到的连接性能强度以电信号的形式发送给信号强度测试系统。An omnidirectional connection performance test system for Bluetooth audio equipment is used to measure the connection performance of Bluetooth audio equipment. Motion omnidirectional motion platform, audio signal generation and signal acquisition equipment, and signal strength test system, the audio signal generation and signal acquisition equipment and the omnidirectional motion platform are spaced apart, and the audio signal generation and signal acquisition equipment is used to communicate with Bluetooth The audio device realizes the Bluetooth connection, sends audio signals to the Bluetooth audio device, collects the connection performance strength of the Bluetooth audio device, and sends the collected connection performance strength to the signal strength test system in the form of an electrical signal.
  2. 如权利要求1所述的蓝牙音频设备全向连接性能测试系统，其特征在于：所述蓝牙音频设备全向连接性能测试系统还包括转接板，所述转接板分别与音频信号发生及信号采集设备、信号强度测试系统电性连接，所述转接板用于将音频信号发生及信号采集设备采集的连接性能强度的电信号进行滤波、放大后发送至信号强度测试系统。The omnidirectional connection performance test system for Bluetooth audio equipment according to claim 1, wherein the Bluetooth audio equipment omnidirectional connection performance test system further comprises an adapter board, and the adapter board is respectively connected to the audio signal generation and signal The acquisition device and the signal strength test system are electrically connected, and the adapter board is used to filter and amplify the audio signal generation and the electrical signal of the connection performance strength collected by the signal acquisition device, and then send it to the signal strength test system.
  3. 如权利要求2所述的蓝牙音频设备全向连接性能测试系统，其特征在于：所述蓝牙音频设备全向连接性能测试系统还包括平台运动控制系统，所述转接板分别与全向运动平台及平台运动控制系统电性连接，所述平台运动控制系统用于通过转接板对全向运动平台的运动进行控制。The omnidirectional connection performance testing system for Bluetooth audio equipment according to claim 2, wherein the omnidirectional connection performance testing system for Bluetooth audio equipment further comprises a platform motion control system, and the adapter board is connected to the omnidirectional motion platform respectively. It is electrically connected with the platform motion control system, and the platform motion control system is used to control the motion of the omnidirectional motion platform through the adapter plate.
  4. 如权利要求3所述的蓝牙音频设备全向连接性能测试系统，其特征在于：所述蓝牙音频设备全向连接性能测试系统还包括射频屏蔽室，所述全向运动平台与音频信号发生及信号采集设备设置在射频屏蔽室内，所述信号强度测试系统、转接板及平台运动控制系统设置在射频屏蔽室外。The omnidirectional connection performance testing system for Bluetooth audio equipment according to claim 3, wherein the omnidirectional connection performance testing system for Bluetooth audio equipment further comprises a radio frequency shielding room, the omnidirectional motion platform and audio signal generation and signal The acquisition equipment is set in the radio frequency shielding room, and the signal strength test system, the adapter board and the platform motion control system are set in the radio frequency shielding room.
  5. 如权利要求1所述的蓝牙音频设备全向连接性能测试系统，其特征在于：所述全向运动平台包括水平转台、竖直升降 轴、竖直转轴及夹持端，所述竖直升降轴的一端固定设置在水平转台上，所述竖直转轴固定设置在竖直升降轴的另一端，所述夹持端设置在竖直转轴上，所述水平转台用于带动竖直升降轴、竖直转轴及夹持端在水平方向转动，所述竖直升降轴用于带动竖直转轴及夹持端在竖直方向做上升或下降运动，所述竖直转轴用于带动夹持端在竖直方向转动，所述夹持端用于夹持所述蓝牙音频设备。The omnidirectional connection performance testing system for Bluetooth audio equipment according to claim 1, wherein the omnidirectional motion platform comprises a horizontal turntable, a vertical lifting shaft, a vertical rotating shaft and a clamping end, and the vertical lifting shaft One end is fixed on the horizontal turntable, the vertical shaft is fixed on the other end of the vertical lift shaft, the clamping end is set on the vertical shaft, the horizontal turntable is used to drive the vertical lift shaft, the vertical shaft The straight rotating shaft and the clamping end rotate in the horizontal direction, the vertical lifting shaft is used to drive the vertical rotating shaft and the clamping end to move up or down in the vertical direction, and the vertical rotating shaft is used to drive the clamping end to move vertically. Rotating in a straight direction, the clamping end is used for clamping the Bluetooth audio device.
  6. 如权利要求5所述的蓝牙音频设备全向连接性能测试系统，其特征在于：所述夹持端与音频信号发生及信号采集设备之间的距离为5-10m。The omnidirectional connection performance testing system for Bluetooth audio equipment according to claim 5, wherein the distance between the clamping end and the audio signal generation and signal acquisition equipment is 5-10m.
  7. 如权利要求2所述的蓝牙音频设备全向连接性能测试系统，其特征在于：所述转接板包括网络滤波器及信号放大器，所述网络滤波器与信号放大器电性连接。The omnidirectional connection performance testing system for Bluetooth audio equipment according to claim 2, wherein the adapter board comprises a network filter and a signal amplifier, and the network filter and the signal amplifier are electrically connected.
  8. 如权利要求1所述的蓝牙音频设备全向连接性能测试系统，其特征在于：所述蓝牙音频设备为蓝牙耳机或蓝牙音箱，所述蓝牙音频信号发生及信号采集设备为手机或其他音频播放设备，所述音频信号发生及信号采集设备与蓝牙音频设备的微波通信频段均为蓝牙频段。The omnidirectional connection performance testing system for bluetooth audio equipment according to claim 1, wherein the bluetooth audio equipment is a bluetooth headset or a bluetooth speaker, and the bluetooth audio signal generation and signal acquisition equipment is a mobile phone or other audio playback equipment , the microwave communication frequency bands of the audio signal generation and signal acquisition equipment and the Bluetooth audio equipment are both Bluetooth frequency bands.
  9. 如权利要求4所述的蓝牙音频设备全向连接性能测试系统，其特征在于：所述蓝牙音频设备全向连接性能测试系统还包括屏蔽门，所述屏蔽门设置在射频屏蔽室外侧上用于测试人员的开启及进入射频屏蔽室内。The omnidirectional connection performance test system for Bluetooth audio equipment according to claim 4, wherein the Bluetooth audio equipment omnidirectional connection performance test system further comprises a screen door, and the screen door is arranged on the outside of the radio frequency shielding room for use in The tester's opening and entry into the RF shielded room.
  10. 一种蓝牙音频设备全向连接性能测试方法，利用如权利要求1-9中任一项所述的蓝牙音频设备全向连接性能测试系统，其特征在于：包括如下步骤：A method for testing the omnidirectional connection performance of Bluetooth audio equipment, using the omnidirectional connection performance testing system for Bluetooth audio equipment according to any one of claims 1-9, characterized in that: it comprises the following steps:
    步骤S1：将蓝牙音频设备与音频信号发生及信号采集设备配对蓝牙连接并正常播放音频信号；Step S1: pair the Bluetooth audio device with the audio signal generation and signal acquisition device to connect to Bluetooth and play the audio signal normally;
    步骤S2：平台运动控制系统控制全向运动平台在蓝牙音频 设备正常播放的情况下带动蓝牙音频设备进行运动；Step S2: the platform motion control system controls the omnidirectional motion platform to drive the Bluetooth audio device to move under the condition that the Bluetooth audio device is playing normally;
    步骤S3：采用计算机同步连续获取音频信号发生及信号采集设备与蓝牙音频设备在不同角度和方向上的连接信号强度；Step S3: using computer synchronization to continuously acquire audio signal generation and signal strength of the connection between the signal acquisition device and the Bluetooth audio device at different angles and directions;
    步骤S4：将计算机对已经获取的信号连接强度进行全向积分计算,获得全向连接信号强度值；同时根据蓝牙音频设备不同的角度和方向的连接信号强度值绘制全向信号强度的3D或2D方向图。Step S4: Omnidirectional integral calculation is performed on the acquired signal connection strength by the computer to obtain the omnidirectional connection signal strength value; at the same time, the 3D or 2D omnidirectional signal strength is drawn according to the connection signal strength values of different angles and directions of the Bluetooth audio device. Orientation map.
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