CN105578137A - Audio and video transmission system for high-altitude operation of transmission tower - Google Patents
Audio and video transmission system for high-altitude operation of transmission tower Download PDFInfo
- Publication number
- CN105578137A CN105578137A CN201510948606.2A CN201510948606A CN105578137A CN 105578137 A CN105578137 A CN 105578137A CN 201510948606 A CN201510948606 A CN 201510948606A CN 105578137 A CN105578137 A CN 105578137A
- Authority
- CN
- China
- Prior art keywords
- wide
- lens camera
- ground
- transmission system
- audio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Helmets And Other Head Coverings (AREA)
- Emergency Alarm Devices (AREA)
Abstract
Description
技术领域technical field
本发明涉及一种传输系统,具体地说是一种输电铁塔高空作业影音传输系统。The invention relates to a transmission system, in particular to an audio-visual transmission system for high-altitude operation of a power transmission iron tower.
背景技术Background technique
当前,电力输电铁塔上高空作业主要是依靠作业人员根据作业环境自主进行作业,当遇到突发问题需要地面人员给予协助时,由于通讯设备的限制,使地面人员的协助工作一时难以及时对塔上工作人员进行技术性指导。对于部分工作需要按照流程逐步完成,高空作业人员很难在工作过程中查阅工作步骤规程,容易造成工作失误等情况。At present, the high-altitude operation on the power transmission tower mainly relies on the operators to carry out the operation independently according to the working environment. When encountering unexpected problems and requiring the assistance of the ground personnel, due to the limitation of communication equipment, it is difficult for the ground personnel to assist the tower in a timely manner. Provide technical guidance to staff. Part of the work needs to be completed step by step according to the process, and it is difficult for high-altitude workers to consult the work procedure regulations during the work process, which may easily lead to work mistakes and other situations.
发明内容Contents of the invention
本发明的目的是提供一种输电铁塔高空作业影音传输系统,能够解决上述问题。The object of the present invention is to provide an audio-visual transmission system for high-altitude operation of a power transmission tower, which can solve the above-mentioned problems.
本发明为实现上述目的,通过以下技术方案实现:输电铁塔高空作业影音传输系统,包括头盔、安全带、地面终端和高空作业专用对讲机,头盔上安装标准镜头摄像机和广角镜头摄像机,安全带上安装无线影音发射器,无线影音发射器上安装天线,地面终端上安装显示器、控制器、无线信号接收器、硬盘存储装置和锂电池组,控制器通过导线分别连接显示器、无线信号接收器、硬盘存储装置和锂电池组,无线影音发射器通过导线连接标准镜头摄像机和广角镜头摄像机,无线影音发射器通过无线信号连接无线信号接收器,无线信号接收器通过无线信号连接高空作业专用对讲机;所述的安全带的腰带处设置定时播放模块和播放装置,定时播放模块连接播放装置,播放装置包括壳体、扬声喇叭、螺母、丝杆、滑轨和步进电机,壳体内部设置扬声喇叭、螺母、丝杆、滑轨和步进电机,滑轨上安装扬声喇叭,扬声喇叭能在滑轨上滑动,步进电机的输出轴安装丝杆,扬声喇叭的侧部安装螺母,螺母与丝杆配合,壳体上部开设透槽,扬声喇叭能沿滑轨滑至透槽下方。In order to achieve the above object, the present invention is realized through the following technical solutions: transmission tower high-altitude operation audio-visual transmission system, including helmet, safety belt, ground terminal and special intercom for high-altitude operation, a standard lens camera and a wide-angle lens camera are installed on the helmet, and a wireless camera is installed on the safety belt Audio and video transmitter, antenna is installed on the wireless audio and video transmitter, display, controller, wireless signal receiver, hard disk storage device and lithium battery pack are installed on the ground terminal, and the controller is respectively connected to the display, wireless signal receiver, and hard disk storage device through wires and a lithium battery pack, the wireless audio-visual transmitter is connected to the standard lens camera and the wide-angle lens camera through wires, the wireless audio-visual transmitter is connected to the wireless signal receiver through wireless signals, and the wireless signal receiver is connected to the special walkie-talkie for high-altitude operations through wireless signals; the safety belt Timing playback module and playback device are set at the belt of the belt, the timing playback module is connected to the playback device, the playback device includes a shell, a speaker, a nut, a screw, a slide rail and a stepping motor, and a speaker, a nut, Screw rod, slide rail and stepping motor, the speaker is installed on the slide rail, the speaker can slide on the slide rail, the output shaft of the stepping motor is installed with a screw, the side of the speaker is installed with a nut, the nut and the wire The rod is matched, and the upper part of the shell is provided with a through groove, and the loudspeaker can slide to the bottom of the through groove along the slide rail.
为了进一步实现本发明的目的,还可以采用以下技术方案:所述的壳体的内部安装吸音板,吸音板位于透槽的侧部。所述的壳体的内部安装报警灯启动开关,报警灯启动开关位于透槽的一侧,壳体的外部安装报警灯。所述头盔上安装连接带,标准镜头摄像机和广角镜头摄像机均安装在连接带上。所述连接带上安装防护罩,防护罩套在标准镜头摄像机和广角镜头摄像机外周。In order to further realize the purpose of the present invention, the following technical solution can also be adopted: a sound-absorbing board is installed inside the housing, and the sound-absorbing board is located at the side of the through groove. An alarm light activation switch is installed inside the housing, the alarm light activation switch is located on one side of the through groove, and an alarm light is installed outside the housing. A connecting belt is installed on the helmet, and a standard lens camera and a wide-angle lens camera are all installed on the connecting belt. A protective cover is installed on the connecting belt, and the protective cover is sleeved on the periphery of the standard lens camera and the wide-angle lens camera.
本发明的优点在于:本发明采用携带式微型双图像传输系统,即广角镜头摄像机和标准镜头摄像机,广角镜头摄像机和标准镜头摄像机拍摄的工作人员在施工作业中广角和高清图像可以实时传送到地面终端内的控制器内;高空作业专用对讲机可以将工作人员在施工作业中语音信号实时传送到地面系统内的控制器内。为了保证施工人员的安全工作,本发明将标准镜头摄像机和广角镜头摄像机安装在头盔上,无需施工人员进行任何操作,即可将图像和语音信号实时传送到地面站。为了实现系统能长时间的进行工作,施工人员携带的无线影音发射器、标准镜头摄像机和广角镜头摄像机采用低电压微功耗的器件,电源采用低压大容量的锂电池组,标准镜头摄像机和广角镜头摄像机选用新型的CMOS型高清摄像头。本发明采用广角镜头摄像机和标准镜头摄像机两个摄像头,在工作中由广角镜头摄像机进行大范围的视频采集,标准镜头摄像机能详细传送工作中的细节图像。工作现场的语音信号通过高空作业专用对讲机实时传送,能给地面人员以身临其境的感觉,为施工人员提供技术支持。本发明的无线影音发射器和无线信号接收器采用2.4G的微波频率,能有效避开各种的无线电干扰,以保证信息的有效传送。通过定时播放模块存入的工作流程要求,定时语音提醒,实现工作按部就班的进行,减少操作操作。本发明还具有结构简洁紧凑、制造成本低廉和使用简便的优点。The advantages of the present invention are: the present invention adopts a portable miniature dual-image transmission system, that is, a wide-angle lens camera and a standard lens camera, and the wide-angle and high-definition images of the workers photographed by the wide-angle lens camera and the standard lens camera can be transmitted to the ground terminal in real time during construction operations In the controller; the special walkie-talkie for aerial work can transmit the voice signal of the staff during the construction operation to the controller in the ground system in real time. In order to ensure the safe work of the construction personnel, the present invention installs the standard lens camera and the wide-angle lens camera on the helmet, and the image and voice signals can be transmitted to the ground station in real time without any operation by the construction personnel. In order to enable the system to work for a long time, the wireless audio-visual transmitter, standard lens camera and wide-angle lens camera carried by the construction workers adopt low-voltage and micro-power consumption devices, and the power supply uses a low-voltage and large-capacity lithium battery pack, standard lens camera and wide-angle lens camera. Use a new type of CMOS high-definition camera. The present invention adopts two cameras of a wide-angle lens camera and a standard lens camera, and the wide-angle lens camera performs large-scale video collection during work, and the standard lens camera can transmit detailed images during work in detail. The voice signal of the work site is transmitted in real time through the special walkie-talkie for aerial work, which can give the ground personnel an immersive feeling and provide technical support for the construction personnel. The wireless audio-video transmitter and wireless signal receiver of the present invention adopt 2.4G microwave frequency, which can effectively avoid various radio interferences to ensure effective transmission of information. Through the workflow requirements stored in the timing playback module, timing voice reminders, the work can be carried out step by step, and operations can be reduced. The invention also has the advantages of simple and compact structure, low manufacturing cost and easy use.
附图说明Description of drawings
图1为本发明的结构示意图;图2是图1的A向视放大结构示意图。Fig. 1 is a schematic structural diagram of the present invention; Fig. 2 is a schematic structural diagram of an enlarged view from the A direction of Fig. 1 .
标注说明:1安全带2天线3无线影音发射器4地面终端5显示器6控制器7头盔8标准镜头摄像机9广角镜头摄像机10连接带11防护罩12无线对讲机13无线信号接收器15播放装置16壳体17报警灯启动开关18透槽19扬声喇叭20螺母21丝杆22滑轨23报警灯24步进电机25吸音板26定时播放模块。Note: 1 safety belt 2 antenna 3 wireless video transmitter 4 ground terminal 5 display 6 controller 7 helmet 8 standard lens camera 9 wide-angle lens camera 10 connection belt 11 protective cover 12 wireless walkie-talkie 13 wireless signal receiver 15 playback device 16 housing 17 Alarm light start switch 18 Through groove 19 Loudspeaker 20 Nut 21 Screw rod 22 Slide rail 23 Alarm light 24 Stepper motor 25 Sound-absorbing board 26 Timing playback module.
具体实施方式detailed description
输电铁塔高空作业影音传输系统,如图1所示,包括头盔7、安全带1、地面终端4和高空作业专用对讲机12,头盔7上安装标准镜头摄像机8和广角镜头摄像机9,安全带1上安装无线影音发射器3,无线影音发射器3上安装天线2,地面终端4上安装显示器5、控制器6、无线信号接收器13、硬盘存储装置14和锂电池组15,控制器6通过导线分别连接显示器5、无线信号接收器13、硬盘存储装置14和锂电池组15,无线影音发射器3通过导线连接标准镜头摄像机8和广角镜头摄像机9,无线影音发射器3通过无线信号连接无线信号接收器13,无线信号接收器13通过无线信号连接高空作业专用对讲机12。所述的操作板1上设置定时播放模块26和播放装置15,定时播放模块26连接播放装置15,播放装置15包括壳体16、扬声喇叭19、螺母20、丝杆21、滑轨22和步进电机24,壳体16内部设置扬声喇叭19、螺母20、丝杆21、滑轨22和步进电机24,滑轨22上安装扬声喇叭19,扬声喇叭19能在滑轨22上滑动,步进电机24的输出轴安装丝杆21,扬声喇叭19的侧部安装螺母20,螺母20与丝杆21配合,壳体16上部开设透槽18,扬声喇叭19能沿滑轨22滑至透槽18下方。定时播放模块26可以根据工作进度播放不同的工作提示和报警提示,扬声喇叭19能在步进电机24能带动下滑至透槽18下方,当需要使用扬声喇叭19时,步进电机24能带动扬声喇叭19滑至透槽18下方,方便扬声喇叭19发声。当不需要使用扬声喇叭19时步进电机24能带动扬声喇叭19收起,防止扬声喇叭19附着灰尘。通过控制扬声喇叭19露出透槽18的面积,可以调节扬声喇叭19的音量,从而便于在不同警报级别下发出不同响度的声音。本发明中声音音量调节与电阻方式调节相比,更加直观,机械方式故障率低。The audio-visual transmission system for high-altitude operation of the transmission tower, as shown in Figure 1, includes a helmet 7, a safety belt 1, a ground terminal 4, and a special walkie-talkie 12 for high-altitude operations. Wireless audio-visual transmitter 3, antenna 2 is installed on the wireless audio-visual transmitter 3, and display 5, controller 6, wireless signal receiver 13, hard disk storage device 14 and lithium battery pack 15 are installed on the ground terminal 4, and controller 6 passes wire respectively Connect display 5, wireless signal receiver 13, hard disk storage device 14 and lithium battery pack 15, wireless audio-visual transmitter 3 is connected standard lens camera 8 and wide-angle lens camera 9 by wire, wireless audio-visual transmitter 3 is connected wireless signal receiver by wireless signal 13. The wireless signal receiver 13 is connected to the special walkie-talkie 12 for aerial work through wireless signals. Timing playing module 26 and playing device 15 are set on the described operating panel 1, and timing playing module 26 connects playing device 15, and playing device 15 comprises housing 16, loudspeaker 19, nut 20, screw mandrel 21, slide rail 22 and Stepper motor 24, housing 16 inside is provided with loudspeaker 19, nut 20, screw mandrel 21, slide rail 22 and stepper motor 24, and loudspeaker 19 is installed on slide rail 22, and loudspeaker 19 can be on slide rail 22 Go up sliding, the output shaft of stepper motor 24 installs screw mandrel 21, the side of loudspeaker horn 19 installs nut 20, and nut 20 cooperates with screw mandrel 21, and casing 16 top offers through groove 18, and loudspeaker horn 19 can slide along The rail 22 slides under the slot 18 . Timing playing module 26 can play different work prompts and alarm prompts according to the work progress, and the loudspeaker 19 can be driven by the stepper motor 24 to slide down to the bottom of the through groove 18. When the loudspeaker 19 needs to be used, the stepper motor 24 can drive The loudspeaker 19 is driven to slide to the bottom of the through groove 18, so that the loudspeaker 19 is convenient for sounding. When the loudspeaker 19 is not needed, the stepper motor 24 can drive the loudspeaker 19 to pack up, preventing the loudspeaker 19 from attaching dust. By controlling the exposed area of the speaker 19 through the slot 18, the volume of the speaker 19 can be adjusted, so that sounds of different loudness can be emitted at different alarm levels. Compared with the adjustment of the resistance mode, the sound volume adjustment in the present invention is more intuitive, and the failure rate of the mechanical mode is low.
为了避免杂音的情况,所述的壳体16的内部安装吸音板25,吸音板25位于透槽18的侧部。位于壳体16内的扬声喇叭19能够有效杂音,保证正常使用。In order to avoid noise, a sound-absorbing board 25 is installed inside the housing 16 , and the sound-absorbing board 25 is located at the side of the through groove 18 . The loudspeaker 19 located in the housing 16 can effectively make noise and ensure normal use.
所述的壳体16的内部安装报警灯启动开关17,报警灯启动开关17位于透槽18的一侧,壳体16的外部安装报警灯23。当收到报警信号不及后,应当及时关闭说明已经收到,如果为及时反映,本发明的报警灯启动开关17可以在扬声喇叭19滑至透槽18下方时被扬声喇叭19触动,使报警灯23开启,使用光信号进行警报。The interior of the housing 16 is equipped with a warning light start switch 17, the warning light start switch 17 is located at one side of the through groove 18, and the outside of the housing 16 is equipped with a warning light 23. After receiving the alarm signal, it should be closed in time to indicate that it has been received. If it is reflected in time, the alarm light start switch 17 of the present invention can be touched by the loudspeaker 19 when the loudspeaker 19 slides to the bottom of the through groove 18, so that The warning light 23 is turned on, and the light signal is used for warning.
本发明采用携带式微型双图像传输系统,即广角镜头摄像机9和标准镜头摄像机8,广角镜头摄像机9和标准镜头摄像机8拍摄的工作人员在施工作业中广角和高清图像可以实时传送到地面终端4内的控制器6内;高空作业专用对讲机12可以将工作人员在施工作业中语音信号实时传送到地面系统内的控制器6内。为了保证施工人员的安全工作,本发明将标准镜头摄像机8和广角镜头摄像机9安装在头盔7上,无需施工人员进行任何操作,即可将图像和语音信号实时传送到地面站。The present invention adopts a portable miniature dual-image transmission system, that is, a wide-angle lens camera 9 and a standard lens camera 8, and the wide-angle and high-definition images of the staff photographed by the wide-angle lens camera 9 and the standard lens camera 8 can be transmitted to the ground terminal 4 in real time during construction operations. In the controller 6; the special walkie-talkie 12 for aerial work can transmit the voice signal of the staff during the construction operation to the controller 6 in the ground system in real time. In order to ensure the safe work of the construction personnel, the present invention installs the standard lens camera 8 and the wide-angle lens camera 9 on the helmet 7, without any operation by the construction personnel, images and voice signals can be transmitted to the ground station in real time.
为了实现系统能长时间的进行工作,施工人员携带的无线影音发射器3、标准镜头摄像机8和广角镜头摄像机9采用低电压微功耗的器件,电源采用低压大容量的锂电池组,标准镜头摄像机8和广角镜头摄像机9选用新型的CMOS型高清摄像头。本发明采用广角镜头摄像机9和标准镜头摄像机8两个摄像头,在工作中由广角镜头摄像机9进行大范围的视频采集,标准镜头摄像机8能详细传送工作中的细节图像。工作现场的语音信号通过高空作业专用对讲机12实时传送,能给地面人员以身临其境的感觉,为施工人员提供技术支持。In order to realize that the system can work for a long time, the wireless audio-visual transmitter 3, the standard lens camera 8 and the wide-angle lens camera 9 carried by the construction personnel adopt devices with low voltage and low power consumption. 8 and wide-angle lens camera 9 select new CMOS type high-definition camera for use. The present invention adopts wide-angle lens camera 9 and two camera heads of standard lens camera 8, carries out wide-range video collection by wide-angle lens camera 9 in the work, and standard lens camera 8 can transmit the detail image in the work in detail. The voice signal at the work site is transmitted in real time through the special walkie-talkie 12 for high-altitude operations, which can give the ground personnel an immersive feeling and provide technical support for the construction personnel.
本发明的无线影音发射器3和无线信号接收器13采用2.4G的微波频率,能有效避开各种的无线电干扰,以保证信息的有效传送。The wireless audio-visual transmitter 3 and the wireless signal receiver 13 of the present invention adopt 2.4G microwave frequency, which can effectively avoid various radio interferences to ensure effective transmission of information.
所述头盔7上安装连接带10,标准镜头摄像机8和广角镜头摄像机9均安装在连接带10上。本发明的连接带10可以方便标准镜头摄像机8和广角镜头摄像机9的安装和拆卸。A connection belt 10 is installed on the helmet 7 , and a standard lens camera 8 and a wide-angle lens camera 9 are all installed on the connection belt 10 . The connection belt 10 of the present invention can facilitate the installation and removal of the standard lens camera 8 and the wide-angle lens camera 9 .
所述连接带10上安装防护罩11,防护罩11套在标准镜头摄像机8和广角镜头摄像机9外周。本发明的防护罩11可以避免标准镜头摄像机8和广角镜头摄像机9由于碰撞而损坏。A protective cover 11 is installed on the connecting belt 10, and the protective cover 11 is sleeved on the outer periphery of the standard lens camera 8 and the wide-angle lens camera 9. The protective cover 11 of the present invention can prevent the standard lens camera 8 and the wide-angle lens camera 9 from being damaged due to collision.
本发明的技术方案并不限制于本发明所述的实施例的范围内。本发明未详尽描述的技术内容均为公知技术。The technical solutions of the present invention are not limited within the scope of the embodiments described in the present invention. The technical contents not described in detail in the present invention are all known technologies.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510948606.2A CN105578137B (en) | 2015-12-17 | 2015-12-17 | Transmission tower aerial work audio and video transmission system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510948606.2A CN105578137B (en) | 2015-12-17 | 2015-12-17 | Transmission tower aerial work audio and video transmission system |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105578137A true CN105578137A (en) | 2016-05-11 |
CN105578137B CN105578137B (en) | 2019-02-19 |
Family
ID=55887738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510948606.2A Active CN105578137B (en) | 2015-12-17 | 2015-12-17 | Transmission tower aerial work audio and video transmission system |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105578137B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106443205A (en) * | 2016-10-20 | 2017-02-22 | 国网山东省电力公司菏泽供电公司 | Hydraulic aerial cage electricity approaching operation alarm system and method |
CN110090372A (en) * | 2019-04-25 | 2019-08-06 | 杨奎军 | A kind of online high altitude operation intelligent and safe band detection monitoring apparatus |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0955971A (en) * | 1995-08-14 | 1997-02-25 | Toyo Commun Equip Co Ltd | Variable sound volume device |
US20060055786A1 (en) * | 2004-03-09 | 2006-03-16 | Viosport | Portable camera and wiring harness |
US8009229B1 (en) * | 2007-11-07 | 2011-08-30 | Allen Peterson | Helmet safety system |
CN203120060U (en) * | 2013-03-25 | 2013-08-07 | 国家电网公司 | A kind of video acquisition equipment and video surveillance system |
CN104092989A (en) * | 2014-07-11 | 2014-10-08 | 国家电网公司 | Distribution line inspection device based on wireless network video transmission |
CN204070723U (en) * | 2014-06-25 | 2015-01-07 | 上海宝钢化工有限公司 | Safety cap |
-
2015
- 2015-12-17 CN CN201510948606.2A patent/CN105578137B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0955971A (en) * | 1995-08-14 | 1997-02-25 | Toyo Commun Equip Co Ltd | Variable sound volume device |
US20060055786A1 (en) * | 2004-03-09 | 2006-03-16 | Viosport | Portable camera and wiring harness |
US8009229B1 (en) * | 2007-11-07 | 2011-08-30 | Allen Peterson | Helmet safety system |
CN203120060U (en) * | 2013-03-25 | 2013-08-07 | 国家电网公司 | A kind of video acquisition equipment and video surveillance system |
CN204070723U (en) * | 2014-06-25 | 2015-01-07 | 上海宝钢化工有限公司 | Safety cap |
CN104092989A (en) * | 2014-07-11 | 2014-10-08 | 国家电网公司 | Distribution line inspection device based on wireless network video transmission |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106443205A (en) * | 2016-10-20 | 2017-02-22 | 国网山东省电力公司菏泽供电公司 | Hydraulic aerial cage electricity approaching operation alarm system and method |
CN110090372A (en) * | 2019-04-25 | 2019-08-06 | 杨奎军 | A kind of online high altitude operation intelligent and safe band detection monitoring apparatus |
Also Published As
Publication number | Publication date |
---|---|
CN105578137B (en) | 2019-02-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN202948293U (en) | Mobile monitoring robot | |
US20200063460A1 (en) | Mobile comptuing device software application interfacing with automation attachment | |
CN103874292A (en) | Intelligent LED (Light Emitting Diode) illumination system and monitoring method thereof | |
CN101888534A (en) | Flight image pick-up system | |
CN103847652B (en) | A kind of installed video and backing parking auxiliary device | |
US20220217273A1 (en) | Spherical camera with magnetic base | |
CN109279016A (en) | Unmanned plane digital speech broadcasting system | |
CN105578137A (en) | Audio and video transmission system for high-altitude operation of transmission tower | |
CN206658273U (en) | A kind of interactive intelligent audio amplifier | |
CN105635592A (en) | External camera wireless prompt system and device | |
CN205080736U (en) | With interactive device of pet and system | |
CN206060971U (en) | A kind of multifunctional intellectual projector | |
KR20190001662U (en) | Portable device | |
CN211210090U (en) | Vehicle-mounted intelligent service terminal | |
CN213524047U (en) | A split head-mounted device | |
CN205123931U (en) | Audio -visual transmission system of steel pylons high altitude construction | |
KR200397845Y1 (en) | Wireless audio signal transferring apparatus | |
US20120223662A1 (en) | Motor speed control system | |
CN209845272U (en) | Bluetooth sound that can wirelessly charge | |
CN106627431A (en) | Refitting system based on vehicle-mounted intelligent interconnection system and refitting method | |
CN209506084U (en) | Unmanned plane digital speech broadcasting system | |
CN206908763U (en) | A kind of pull bar sound equipment with detachable operating case | |
CN206893035U (en) | new police siren | |
CN206481436U (en) | A kind of double bluetooth earphones with tumble auto-alarm function | |
CN105959865A (en) | Multifunctional sound system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |