CN216565383U - Audio and video recorder capable of independently talkback in public network - Google Patents
Audio and video recorder capable of independently talkback in public network Download PDFInfo
- Publication number
- CN216565383U CN216565383U CN202122731341.4U CN202122731341U CN216565383U CN 216565383 U CN216565383 U CN 216565383U CN 202122731341 U CN202122731341 U CN 202122731341U CN 216565383 U CN216565383 U CN 216565383U
- Authority
- CN
- China
- Prior art keywords
- capacitor
- electrically connected
- diode
- public network
- resistor
- 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.)
- Active
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims description 130
- 238000010586 diagram Methods 0.000 claims description 15
- 230000009467 reduction Effects 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims 1
- 150000004706 metal oxides Chemical class 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 claims 1
- 238000004891 communication Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Closed-Circuit Television Systems (AREA)
Abstract
The utility model provides an audio and video recorder capable of talkback in an independent public network, which comprises: the public network interphone module is used for detecting the electric quantity of the battery and carrying out public network talkback; the main control module is used for shooting, recording and displaying; the peripheral circuit module is used for supplying power to the public network interphone module; the power supply circuit module is used for supplying power to the main control module; the battery module is used for supplying power to the whole circuit; the battery is electrically connected with the peripheral circuit module and the power supply circuit module, the main control module is electrically connected with the power supply circuit module and the public network interphone module, and the peripheral circuit module is electrically connected with the public network interphone module.
Description
Technical Field
The utility model belongs to the technical field of recording instruments and equipment, and particularly relates to an audio and video recorder for independent public network talkback.
Background
The existing audio and video recorder integrates the functions of digital camera shooting, digital photographing and the like, can carry out digital recording on dynamic and static field conditions in the law enforcement process, and is convenient for the public security officers to use in law enforcement in various environments. Besides the basic video recording and recording functions, the audio and video recorder with the public network can also realize functions of whole-network communication public network talkback, equipment management and the like, realizes the distance unlimited, can freely talk back and talk in a mobile phone signal coverage area, and is suitable for being fully applied to various industries such as field work law enforcement, investigation and control, security and protection, emergency command, emergency maintenance, line patrol management and the like.
However, the existing public network talkback supporting audio equipment in the market has a public network talkback function, but has the defect that public network talkback can be carried out only under the condition that an audio and video recorder is started, and if the audio and video recorder is in a power-off state, talkback calls of members in the same group cannot be received, and important information is missed. Meanwhile, the audio and video recorder system and the public network interphone system work simultaneously, so that the current is very high, and the cruising ability of the equipment is shortened. In some occasions, the camera shooting or photographing is not needed, and only the public network talkback function is needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides an audio and video recorder capable of independently talkback in a public network, which can perform public network talkback without starting an audio and video recorder system, and can enable users to perform whole network talkback at any time.
The technical scheme of the utility model is realized as follows: an audio and video recorder that can independently public network talkbacks, its characterized in that includes: the public network interphone module is used for detecting the electric quantity of the battery and talkbacking a public network; the main control module is used for shooting, recording and displaying; the peripheral circuit module is used for supplying power to the public network interphone module; the power supply circuit module is used for supplying power to the main control module; the battery module is used for supplying power to the whole circuit; the battery electric connection peripheral circuit module and power supply circuit module, main control module electric connection power supply circuit module and public network intercom module, peripheral circuit module electric connection public network intercom module can selectively carry out the video recording and public network talkback or carry out public network talkback alone.
As a preferred embodiment, the peripheral circuit module comprises a voltage reduction circuit, a control circuit, a public network interphone independent power supply circuit diagram, a second power supply circuit and a third power supply circuit, the public network interphone independent power supply circuit diagram comprises a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first PMOS transistor, a second PMOS transistor, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode and a first resistor, the first capacitor is electrically connected with the second capacitor, the first resistor, a third diode anode, a sixth diode cathode, a second PMOS transistor source, a first diode anode and a fifth diode cathode, the first capacitor and the second capacitor are grounded, the third diode cathode is electrically connected with the fourth diode cathode, the first diode cathode is electrically connected with the second diode cathode, the anode of the sixth diode is electrically connected with the anode of the fifth diode, the drain of the second PMOS tube, the gate of the second PMOS tube, the drain of the second PMOS tube, the gate of the first PMOS tube, the anode of the fifth diode, the third capacitor, the fourth capacitor and the first resistor, the anode of the sixth diode is grounded, the third capacitor is electrically connected with the fourth capacitor and then grounded, the second power supply circuit comprises the fifth capacitor, the sixth capacitor, the seventh capacitor, the first mainboard and the second resistor, the fifth capacitor is grounded, the fifth capacitor is electrically connected with the BP interface of the first mainboard, the sixth capacitor is grounded, the sixth capacitor is electrically connected with the OUT interface of the first mainboard, the seventh capacitor is grounded, the seventh capacitor is electrically connected with the IN interface of the first mainboard, the GND interface of the first mainboard is grounded, the EN interface of the first mainboard is electrically connected with the second resistor, the second resistor is electrically connected with the VDD _ EXT interface, and the third power supply circuit comprises the eighth capacitor, The ninth capacitor, the tenth capacitor, the second mainboard, the third resistance, the eighth capacitor ground connection, the eighth capacitor electric connection first mainboard BP interface, the ninth capacitor ground connection, the ninth capacitor electric connection first mainboard OUT interface, the tenth capacitor ground connection, the tenth capacitor electric connection second mainboard IN interface, the GND interface ground connection of first mainboard, the EN interface electric connection second resistance of first mainboard, second resistance electric connection VDD _ EXT interface, can export a plurality of voltages and supply power and satisfy the changeability of the condition of service voltage, and supply suitable power.
As a preferred embodiment, the main control module comprises a display, a processor, a controller, a storage and a receiver to realize the recording, photographing, recording and displaying of the audio-video recorder.
In a preferred embodiment, the power supply circuit module comprises a transformer and a control circuit, the control circuit locks the power supply, and the transformer supplies power.
As a preferred implementation mode, the public network interphone module comprises a switch battery capacity detector, a serial port protocol and a rotary encoder, and the battery capacity can be detected in real time when the independent public network interphone is used; the circuit 1 comprises an eleventh capacitor, a fourth resistor, a fifth resistor and a third processor, wherein an RX interface of the third processor is electrically connected with the ADC-AOC, the eleventh capacitor and the fourth resistor, an S1 interface of the third processor is electrically connected with the PPT-PW-EN, an R1 interface of the third processor is electrically connected with the fifth resistor, an S2 interface of the third processor is grounded, the fourth resistor, the fifth resistor and the eleventh capacitor are grounded, the independent startup circuit 2 comprises a twelfth capacitor, a third PMOS tube, a seventh diode and a sixth resistor, a source electrode of the first NMOS tube is electrically connected with a cathode of the seventh diode and PWEREY, a drain electrode of the first NMOS tube is electrically connected with an anode of the seventh diode, a grid electrode of the first NMOS tube is electrically connected with the twelfth capacitor, the twelfth capacitor is electrically connected with VIN and the sixth resistor, and the sixth resistor is grounded, and the independent startup can be realized.
After the technical scheme is adopted, the utility model has the beneficial effects that: the audio and video recorder capable of independently speaking in the public network not only realizes the whole network communication without distance limitation under the condition that the audio and video recorder is turned off.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an audio and video recorder capable of being talkbacked by an independent public network;
FIG. 2 is a circuit diagram of an independent power supply circuit for a public network interphone;
FIG. 3 is a circuit diagram of a 3V power supply;
FIG. 4 is a circuit diagram of a 1.8V power supply;
fig. 5 is a circuit 1 for independently starting up a public network interphone;
fig. 6 is a circuit 2 for independently starting up a public network interphone;
FIG. 7 is a schematic diagram of a public network interphone module;
FIG. 8 is a circuit diagram of a master control module
In FIGS. 2-4, C31-first capacitor; c32 — a second capacitor; c33 — third capacitor; c34-fourth capacitor; p1-first PMOS tube; p2-second PMOS tube; VD 1-first diode; VD2 — second diode; VD3 — third diode; VD4 — fourth diode; VD5 — fifth diode; VD6 — sixth diode; r31 — first resistance; c13-fifth capacitor; c11-sixth capacitor; c12-seventh capacitor; u4 — first motherboard; r11 — second resistance; c21 — eighth capacitor; c22 — ninth capacitor; c23-tenth capacitor; u17-second motherboard; r21 — third resistance; an eleventh capacitor-C41; a fourth resistor-R41; a fifth resistor-R42; a third processor-U41; a twelfth capacitor-C51; a first NMOS transistor-N1, a seventh diode-VD 7; sixth resistor-R51.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 8, an audio/video recorder capable of being talkbacked by an independent public network includes: the public network interphone module is used for detecting the electric quantity of the battery and talkbacking a public network; the main control module is used for shooting, recording and displaying; the peripheral circuit module is used for supplying power to the public network interphone module; the power supply circuit module is used for supplying power to the main control module; the battery module is used for supplying power to the whole circuit; the battery electric connection peripheral circuit module and power supply circuit module, main control module electric connection power supply circuit module and public network intercom module, peripheral circuit module electric connection public network intercom module can selectively carry out the video recording and public network talkback or carry out public network talkback alone.
When the audio and video recorder is started, the public network interphone is simultaneously started to carry out sound recording and video recording and real-time conversation, or the public network interphone is independently started to be connected with a battery for power supply through the peripheral circuit module.
The peripheral circuit module comprises a voltage reduction circuit, a control circuit public network interphone independent power supply circuit diagram, a 3V power supply circuit diagram and a 1.8V power supply circuit diagram, the public network interphone independent power supply circuit diagram comprises a first capacitor C31, a second capacitor C32, a third capacitor C33, a fourth capacitor C34, a first PMOS tube, a second PMOS tube, a first diode VD1, a second diode VD2, a third diode VD3, a fourth diode VD4, a fifth diode VD5, a sixth diode VD6 and a first resistor R31, the first capacitor C31 is electrically connected with the cathode of the second capacitor C32, the first resistor R31, the anode of the third diode VD3, the cathode of the sixth diode VD6, the source of the second PMOS tube, the source of the first PMOS tube VD1, the anode of the fifth diode VD5, the first capacitor C31 and the second capacitor C32 are grounded, the cathode of the third diode VD3 is electrically connected with the fourth diode VD4, the cathode of the first diode VD1 is electrically connected to the cathode of the second diode VD2, the anode of the sixth diode VD6 is electrically connected to the anode of the fifth diode VD5, the drain of the second PMOS transistor, the gate of the second PMOS transistor, the drain of the second PMOS transistor, the gate of the first PMOS transistor, the anode of the fifth diode VD5, the third capacitor C33, the fourth capacitor C34 and the first resistor R31, the anode of the sixth diode VD6 is grounded, the third capacitor C33 is electrically connected to the fourth capacitor C34 and then grounded, the 3V power supply circuit diagram includes the fifth capacitor C13, the sixth capacitor C11, the seventh capacitor C12, the first motherboard U4 and the second resistor R11, the fifth capacitor C13 is grounded, the fifth capacitor C13 is electrically connected to the interface of the first motherboard U4U 6, the sixth capacitor C11 is grounded, the sixth capacitor C11 is electrically connected to the interface of the first motherboard U4OUT, the seventh capacitor C388 is grounded, the seventh capacitor C12 is electrically connected to the interface of the first motherboard U4, and the interface of the first motherboard 4974 is electrically connected to the GND 4, the EN interface of the first motherboard U4 is electrically connected to the second resistor R11, the second resistor R11 is electrically connected to the VDD _ EXT interface, the 1.8V power supply circuit diagram includes an eighth capacitor C21, a ninth capacitor C22, a tenth capacitor C23, the second motherboard U17, the third resistor R21, the eighth capacitor C21 is grounded, the eighth capacitor C21 is electrically connected to the first motherboard U4BP interface, the ninth capacitor C22 is grounded, the ninth capacitor C22 is electrically connected to the first motherboard U4OUT interface, the tenth capacitor C23 is grounded, the tenth capacitor C23 is electrically connected to the second motherboard U17IN interface, the GND interface of the first motherboard U4 is grounded, the EN interface of the first motherboard U4 is electrically connected to the second resistor R11, the second resistor R11 is electrically connected to the VDD _ EXT interface, and can output multiple voltages for power supply, thereby meeting the variety of the conditions of the usage voltages, and the main controller module includes a display and a processing module, The controller, the storage and the receiver are used for realizing the recording, photographing, recording and displaying of the audio and video recorder. The power supply circuit module comprises a transformer and a control circuit, and the power supply is locked through the control circuit and is supplied with power through the transformer. The public network interphone module comprises a switch battery electric quantity detector, a serial port protocol and a rotary encoder, and the battery electric quantity can be detected in real time when the independent public network interphone is used.
The circuit 1 comprises an eleventh capacitor, a fourth resistor-R41, a fifth resistor-R42 and a third processor-U41, wherein the third processor-U41 RX interface is electrically connected with an ADC-AOC, the eleventh capacitor and the fourth resistor-R41, the third processor-U41S 1 interface is electrically connected with a PPT-PW-EN, the third processor-U41R 1 interface is electrically connected with the fifth resistor-R42, the third processor-U41S 2 interface is grounded, and the fourth resistor-R41, the fifth resistor-R42 and the eleventh capacitor grounded independent startup circuit 2 comprises a twelfth capacitor-C51, a fifth capacitor-R51, a sixth capacitor, a fifth capacitor, a sixth capacitor, a fourth capacitor, a fifth capacitor, a fourth resistor, a fifth capacitor, a sixth capacitor, a fifth capacitor, a sixth capacitor, a fifth capacitor, a sixth, a fifth capacitor, a sixth capacitor, a fifth capacitor, a sixth capacitor, a fifth capacitor, a sixth capacitor, a fifth capacitor, the power supply comprises a third PMOS tube, a seventh diode-VD 7 and a sixth resistor-R51, wherein the source electrode of a first NMOS tube-N1 is electrically connected with the cathode electrode of the seventh diode-VD 7 and PWEREY, the drain electrode of the first NMOS tube-N1 is electrically connected with the anode electrode of the seventh diode-VD 7, the grid electrode of the first NMOS tube-N1 is electrically connected with a twelfth capacitor-C51, the twelfth capacitor-C51 is electrically connected with VIN and the sixth resistor-R51, and the sixth resistor-R51 is grounded and can be independently started.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An audio and video recorder that can independently public network talkbacks, its characterized in that includes:
the public network interphone module is used for detecting the electric quantity of the battery and talkbacking a public network;
the main control module is used for shooting, recording and displaying;
the peripheral circuit module is used for supplying power to the public network interphone module;
the power supply circuit module is used for supplying power to the main control module;
the battery module is used for supplying power to the whole circuit;
the battery module is electrically connected with the peripheral circuit module and the power supply circuit module, the main control module is electrically connected with the power supply circuit module and the public network interphone module, and the peripheral circuit module is electrically connected with the public network interphone module.
2. The audio/video recorder of claim 1, wherein the peripheral circuit module comprises a voltage reduction circuit, a control circuit, a first power supply circuit, a second power supply circuit, and a third power supply circuit.
3. The audio-video recorder that can be talkbacked over an independent public network of claim 1, wherein the master control module comprises a display, a processor, a controller, a memory, and a receiver.
4. The audio-video recorder capable of realizing independent public network talkback according to claim 1, wherein the power supply circuit module comprises a transformer and a control circuit.
5. The audio and video recorder of independent public network talkback of claim 1, wherein the public network interphone module comprises a switch battery power detector, a serial port protocol, a rotary encoder, an independent startup circuit 1 and an independent startup circuit 2.
6. The audio/video recorder of claim 2, wherein the independent power supply circuit diagram of the public network interphone comprises a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first PMOS (P-channel metal oxide semiconductor) tube, a second PMOS tube, a first diode, a second diode, a third diode, a fourth diode, a fifth diode, a sixth diode and a first resistor, wherein the first capacitor is electrically connected with the second capacitor, the first resistor, a third diode anode, a sixth diode cathode, a second PMOS tube source, a first diode anode and a fifth diode cathode, the first capacitor and the second capacitor are grounded, the third diode cathode is electrically connected with the fourth diode cathode, the first diode cathode is electrically connected with the second diode cathode, and the sixth diode anode is electrically connected with the fifth diode anode, The sixth diode anode is grounded, and the third capacitor is electrically connected with the fourth capacitor and then grounded.
7. The audio/video recorder capable of realizing independent public network talkback according to claim 2, wherein the second power supply circuit comprises a fifth capacitor, a sixth capacitor, a seventh capacitor, a first mainboard and a second resistor, the fifth capacitor is grounded, the fifth capacitor is electrically connected to a BP interface of the first mainboard, the sixth capacitor is grounded, the sixth capacitor is electrically connected to an OUT interface of the first mainboard, the seventh capacitor is grounded, the seventh capacitor is electrically connected to an IN interface of the first mainboard, a GND interface of the first mainboard is grounded, an EN interface of the first mainboard is electrically connected to the second resistor, and the second resistor is electrically connected to a VDD _ EXT interface.
8. The audio/video recorder of claim 7, wherein the third power supply circuit comprises an eighth capacitor, a ninth capacitor, a tenth capacitor, a second motherboard, and a third resistor, the eighth capacitor is grounded, the eighth capacitor is electrically connected to the BP interface of the second motherboard, the ninth capacitor is grounded, the ninth capacitor is electrically connected to the OUT interface of the second motherboard, the tenth capacitor is grounded, the tenth capacitor is electrically connected to the IN interface of the second motherboard, the GND interface of the first motherboard is grounded, the EN interface of the first motherboard is electrically connected to the second resistor, and the second resistor is electrically connected to the VDD _ EXT interface.
9. The audio/video recorder capable of realizing independent public network talkback according to claim 1, wherein the independent startup circuit 1 comprises an eleventh capacitor, a fourth resistor, a fifth resistor and a third processor, the third processor RX interface is electrically connected to the ADC-AOC, the eleventh capacitor and the fourth resistor, the third processor S1 interface is electrically connected to the PPT-PW-EN, the third processor R1 interface is electrically connected to the fifth resistor, the third processor S2 interface is grounded, and the fourth resistor, the fifth resistor and the eleventh capacitor are grounded.
10. The audio/video recorder capable of realizing independent public network talkback according to claim 5, wherein the independent startup circuit 2 comprises a twelfth capacitor, a third PMOS tube, a seventh diode and a sixth resistor, wherein the anode of the seventh diode is electrically connected with the drain of the first NMOS tube, the source of the first NMOS tube is electrically connected with the cathode of the seventh diode and PWEREY, the gate of the first NMOS tube is electrically connected with the twelfth capacitor, the twelfth capacitor is electrically connected with VIN and the sixth resistor, and the sixth resistor is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122731341.4U CN216565383U (en) | 2021-11-09 | 2021-11-09 | Audio and video recorder capable of independently talkback in public network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122731341.4U CN216565383U (en) | 2021-11-09 | 2021-11-09 | Audio and video recorder capable of independently talkback in public network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216565383U true CN216565383U (en) | 2022-05-17 |
Family
ID=81571982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122731341.4U Active CN216565383U (en) | 2021-11-09 | 2021-11-09 | Audio and video recorder capable of independently talkback in public network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216565383U (en) |
-
2021
- 2021-11-09 CN CN202122731341.4U patent/CN216565383U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11336105B2 (en) | Multi-battery charging and discharging device and mobile terminal | |
| CN106356925B (en) | Mobile terminal and its battery charge controller, charge control method | |
| CN201967090U (en) | Multifunctional Bluetooth earphone | |
| CN214045730U (en) | Office meeting device capable of expanding display based on TypeC interface | |
| CN1917631A (en) | Intelligent system for monitoring and controlling remote wireless video compatible to passive/active modes | |
| WO2018028133A1 (en) | Security and protection monitoring device, security and protection monitoring system and security and protection monitoring method | |
| EP4044755B1 (en) | Device networking method, electronic device, and system | |
| EP4050754B1 (en) | Power supply system, and electronic device | |
| CN108631401A (en) | Charging circuit, method, electronic equipment and storage medium | |
| CN202035098U (en) | Portable electric real-time work condition routing inspection terminal | |
| CN216565383U (en) | Audio and video recorder capable of independently talkback in public network | |
| CN111949107B (en) | Method and device for controlling electronic equipment comprising USB Type-C interface and electronic equipment | |
| CN101945164B (en) | 2.4 G wireless alarming telephone | |
| CN212484514U (en) | Intelligent alarm of dull and stereotyped | |
| CN112838626A (en) | Electronic device, charging method thereof and readable storage medium | |
| CN111384762A (en) | Battery module, charging circuit, charging control method and device and electronic equipment | |
| WO2022105503A1 (en) | Charging circuit, electronic device and charging apparatus | |
| CN105245821A (en) | High-definition video teleconferencing mobile portable system | |
| CN213638004U (en) | Multimedia intelligent conference machine control system | |
| CN116937983A (en) | Voltage conversion circuit and electronic equipment | |
| CN222706271U (en) | Charging circuit and electronic equipment | |
| CN208210156U (en) | A kind of inspection device | |
| CN211239867U (en) | POE power supply ware | |
| CN205681562U (en) | Mobile evidence-obtaining system based on private network TD LTE | |
| CN206993224U (en) | doorbell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |