CN219696022U - Electronic conference table card system - Google Patents
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- CN219696022U CN219696022U CN202320111031.9U CN202320111031U CN219696022U CN 219696022 U CN219696022 U CN 219696022U CN 202320111031 U CN202320111031 U CN 202320111031U CN 219696022 U CN219696022 U CN 219696022U
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- 238000004891 communication Methods 0.000 claims abstract description 157
- 230000003993 interaction Effects 0.000 claims abstract description 33
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- 239000000976 ink Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000006855 networking Effects 0.000 description 5
- 230000002618 waking effect Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 208000033748 Device issues Diseases 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- 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
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Abstract
The utility model discloses an electronic conference table card system, which comprises a first communication module, a second communication module and a plurality of electronic conference table cards; the electronic conference table board comprises a third communication module and a display module; the first communication module is used for being connected with external man-machine interaction equipment, and is used for receiving a first instruction of the man-machine interaction equipment; the second communication module is used for being connected with the electronic conference table board, the second communication module is used for sending the first instruction to the electronic conference table board, the first instruction is used for starting the third communication module of the electronic conference table board, the electronic conference table board is in bidirectional connection with the man-machine interaction device through the third communication module, and the second instruction is used for rewriting and updating display content of the display module. The utility model realizes low power consumption and timely response of the electronic conference table card.
Description
Technical Field
The utility model relates to the technical field of conference table cards, in particular to an electronic conference table card system.
Background
The traditional conference table board is made of acrylic or paper materials, and each conference needs to be designed, printed and cut; different meeting participants of different meetings have difficult cyclic utilization, waste paper and complicated work, are not economical and environment-friendly, and are time-consuming, labor-consuming and low-efficiency. The electronic conference table card is an intelligent terminal for replacing the traditional printing table card, and has the characteristics of flexible display mode, convenient and quick operation and repeated refreshing and use.
In the related art, the electronic conference table card is rewritten and updated on the basis of networking technologies such as WIFI, bluetooth and LORA, and because the electronic conference table card keeps a networking state for a long time, the module power consumption is high, but the updating frequency of the electronic conference table card in an actual use scene is low. At present, a mode of sleeping and regularly waking up a low-power consumption MCU (Micro ControllerUnit, a micro control unit or a singlechip) is generally adopted to realize the low power consumption of the electronic conference table board, and the application rewriting requirement is detected and updated after the MCU is woken up, but the MCU is required to be powered by a power supply system for a long time in a wake-up state or a sleep state, and the MCU is required to consume certain electric energy in the sleep state, so that the low power consumption in the true sense is not realized. Meanwhile, due to the adoption of the timed wake-up mode, the MCU does not respond to external requests in a sleep state, and a certain delay exists for responding to command requests for rewriting and updating display contents.
Disclosure of Invention
The utility model mainly aims to provide an electronic conference table card system which aims at realizing low power consumption and timely response of electronic conference table cards.
In order to achieve the above purpose, the present utility model provides an electronic conference table card system, which includes a first communication module, a second communication module, and a plurality of electronic conference table cards; the electronic conference table board comprises a third communication module and a display module; the first communication module is used for being connected with external man-machine interaction equipment, and is used for receiving a first instruction of the man-machine interaction equipment; the second communication module is used for being connected with the electronic conference table board, the second communication module is used for sending the first instruction to the electronic conference table board, the first instruction is used for starting the third communication module of the electronic conference table board, the electronic conference table board is in bidirectional connection with the man-machine interaction device through the third communication module, the third communication module is used for receiving the second instruction of the man-machine interaction device, and the second instruction is used for rewriting and updating display contents of the display module.
Optionally, the first communication module includes a network interface circuit and/or a first WIFI communication circuit, and the first communication module is connected to the man-machine interaction device through the network interface circuit and/or the first WIFI communication circuit. Specifically, the network port interface circuit comprises an RJ45 network port.
Optionally, the second communication module includes an intermediate frequency wireless communication circuit, and the second communication module is connected with the electronic conference table board through the intermediate frequency wireless communication circuit.
Optionally, the signal frequency of the intermediate frequency wireless communication circuit includes 465kHz, 400kHz, 315M, 433M, and 973M.
Optionally, the third communication module includes a second WIFI communication circuit and/or a bluetooth communication circuit, and the electronic conference table board is bidirectionally connected with the man-machine interaction device through the second WIFI communication circuit and/or the bluetooth communication circuit.
Optionally, the electronic conference table tablet includes vertical riser and supports the base of vertical riser, the base includes triangle-shaped structure, be provided with on the vertical riser display module, the inside of vertical riser is provided with third communication module.
Optionally, the vertical plate is detachably connected with the base, and a groove part is arranged on the base and is used for accommodating at least part of the vertical plate; the bottom in recess portion is equipped with first mounting hole, the bottom of vertical riser is equipped with the second mounting hole, first mounting hole with the second mounting hole is used for supplying the mounting to pass in proper order, the mounting is used for with vertical riser with the base is fixed each other.
Optionally, a plurality of anti-slip gaskets are arranged at the bottom of the base, wherein part of the anti-slip gaskets are coaxially aligned with the first mounting holes.
Optionally, the display device comprises two display modules, wherein the two display modules are respectively arranged on two opposite sides of the vertical plate.
Optionally, the display module includes an ink electronic screen.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model utilizes the first communication module to receive the first instruction of the man-machine interaction device, and utilizes the second communication module to send the first instruction to the plurality of electronic conference table cards, wherein the first instruction is used for waking up the third communication module for starting the electronic conference table cards so that the electronic conference table cards can receive the second instruction of the man-machine interaction device through the third communication module, and the second instruction is used for rewriting and updating the display content of the display module. The third communication modules of the electronic conference table cards are uniformly awakened and activated by the communication starting device formed by combining the first communication modules and the second communication modules, and the first communication modules can start the second communication modules to send the first instructions to activate and awaken the third communication modules after receiving the first instructions of the man-machine interaction equipment, so that the third communication modules of the electronic conference table cards can start to operate on the premise of responding to display content rewriting and updating, the electronic conference table cards are prevented from keeping a networking state or a dormant standby state for a long time, and the power supply power consumption of the electronic conference table cards is effectively reduced. Meanwhile, the electronic conference table board realizes batch activation and awakening through the communication starting device to rewrite and update the content, thereby greatly simplifying the starting flow and shortening the response time.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of one embodiment of an electronic conference table card system of the present utility model;
fig. 2 is a schematic diagram of an electronic conference table card according to an embodiment of the present utility model;
fig. 3 is a schematic diagram of an electronic conference table card according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of an electronic conference table card according to an embodiment of the electronic conference table card system of the present utility model;
fig. 5 is a schematic diagram of an electronic conference table card according to an embodiment of the present utility model.
The names of the components marked in the figures are as follows:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 1 | Vertical plate | 101 | Ink electronic screen |
| 102 | First mounting hole | 2 | Base seat |
| 201 | Groove portion | 202 | Second mounting hole |
| 203 | Anti-slip gasket | 3 | Fixing piece |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the present utility model will be made more fully hereinafter with reference to the accompanying drawings, in which it is shown, however, some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment discloses an electronic conference table card system, which comprises a first communication module, a second communication module and a plurality of electronic conference table cards, wherein the first communication module is used for receiving a first communication signal; the electronic conference table board comprises a third communication module and a display module; the first communication module is used for being connected with external man-machine interaction equipment, and is used for receiving a first instruction of the man-machine interaction equipment; the second communication module is used for being connected with the electronic conference table board, the second communication module is used for sending the first instruction to the electronic conference table board, the first instruction is used for starting the third communication module of the electronic conference table board, the electronic conference table board is in bidirectional connection with the man-machine interaction device through the third communication module, the third communication module is used for receiving the second instruction of the man-machine interaction device, and the second instruction is used for rewriting and updating display contents of the display module.
The first communication module is utilized to receive the first instruction of the man-machine interaction device, and the second communication module is utilized to send the first instruction to the plurality of electronic conference table cards, wherein the first instruction is used for waking up the third communication module of the electronic conference table cards, so that the electronic conference table cards can receive the second instruction of the man-machine interaction device through the third communication module, and the second instruction is used for rewriting and updating the display content of the display module. The third communication modules of the electronic conference table cards are uniformly awakened and activated by the communication starting device formed by combining the first communication modules and the second communication modules, and the first communication modules can start the second communication modules to send the first instructions to activate and awaken the third communication modules after receiving the first instructions of the man-machine interaction equipment, so that the third communication modules of the electronic conference table cards can start to operate on the premise of responding to display content rewriting and updating, the electronic conference table cards are prevented from keeping a networking state or a dormant standby state for a long time, and the power supply power consumption of the electronic conference table cards is effectively reduced. Meanwhile, the electronic conference table board realizes batch activation and awakening through the communication starting device to rewrite and update the content, thereby greatly simplifying the starting flow and shortening the response time.
Meanwhile, the first communication module and the second communication module are combined to serve as a communication starting device, so that the signal instruction radiation function is achieved, a single communication starting device can control and start a plurality of electronic conference table cards at the same time, and the operation convenience is improved.
Specifically, the first communication module comprises a network interface circuit and/or a first WIFI communication circuit, and the first communication module is connected with the man-machine interaction equipment through the network interface circuit and/or the first WIFI communication circuit. Further, the network port interface circuit comprises an RJ45 network port. The network interface circuit is used as a first communication module to perform wired communication with the man-machine interaction equipment, or the first WIFI communication circuit is used as a first communication module to perform wireless WIFI communication with the man-machine interaction equipment, the wired communication or the wireless communication can be specifically selected according to the field condition, so that networking communication between the communication starting device and the man-machine interaction equipment is realized, and the network interface circuit is simple in structure and high in practicability. The network port interface circuit and/or the first WIFI communication circuit belong to the prior art, and the network port interface circuit is a circuit structure for performing data communication by using an RJ45 network port, and the first WIFI communication circuit is a circuit structure for performing data communication by using a WIFI network, so that detailed description of specific structures of the first WIFI communication circuit is omitted.
Specifically, the second communication module comprises an intermediate frequency wireless communication circuit, and the second communication module is connected with the electronic conference table board through the intermediate frequency wireless communication circuit. Thus, the intermediate frequency wireless communication circuit refers to a circuit capable of transmitting and receiving intermediate frequency radio waves, wherein the intermediate frequency is one of the earlier wave bands, and is mainly used in broadcasting, navigation, communication and the like. Intermediate frequency propagation has some characteristics of both long wave and short wave propagation. It can propagate either along the diffraction of the ground surface or through ionospheric reflection. Intermediate waves propagating in the form of ground waves can be received nearer in the daytime and the field strength is fairly stable. The mid-night frequency propagates in the form of ground and sky waves, which can propagate to considerable distances. The receiving field intensity is very stable by wireless or surface wave propagation, and the method can be used for completing reliable communication, such as ship communication, navigation and the like. Medium short wave with the wavelength of 2000-200m is mainly used for broadcasting, so that an intermediate frequency broadcasting band is adopted. The present utility model relates to a wireless communication circuit, and more particularly to a wireless communication circuit for transmitting data through an intermediate frequency radio wave.
Further, the signal frequency of the intermediate frequency wireless communication circuit comprises 465kHz, 400kHz, 315M, 433M and 973M, preferably 465kHz. The electronic conference table board is arranged in such a way that the intermediate frequency 465kHz transmission distance is long, the instruction is simple, the electronic conference table board is not easy to be interfered by high-frequency signals, the corresponding circuit cost is low, the electronic conference table board belongs to a public frequency band, and particularly in a conference scene, the electronic conference table board basically has no same frequency band to use, and a receiving end generates resonance micro current through a receiving antenna and can trigger the circuit, so that passive work is realized, standby power consumption is basically not generated, and further power consumption of the electronic conference table board can be reduced.
Specifically, the third communication module comprises a second WIFI communication circuit and/or a Bluetooth communication circuit, and the electronic conference table board is in bidirectional connection with the man-machine interaction equipment through the second WIFI communication circuit and/or the Bluetooth communication circuit. So set up, this embodiment adopts two wireless channel, utilizes intermediate frequency wireless channel to realize terminal awakening function, and WIFI or bluetooth passageway realize data communication function to reach the work of electronic conference table tablet low-power consumption, reduce the frequency of charging of electronic conference table tablet. The second WIFI communication circuit and/or the bluetooth communication circuit belong to the prior art, the second WIFI communication circuit is a circuit structure for performing data communication by using a WIFI network, and the bluetooth communication circuit is a circuit structure for performing data communication by using a bluetooth signal, so the specific structure of the second WIFI communication circuit and/or the bluetooth communication circuit is not described in detail.
The following describes the operation steps of the above embodiment in detail:
step S1: the battery of the electronic conference table card terminal is normally powered, and the third communication module (the second WIFI communication circuit and/or the Bluetooth communication circuit) is in an interrupt state;
step S2: the control software of the man-machine interaction device issues an activating and awakening instruction (a first instruction) of a third communication module of the batch electronic conference table cards through a first communication module (a network interface circuit); after receiving the first instruction, the first micro-processing unit of the communication starting device sends the first instruction to the electronic conference table board by utilizing the second communication module (the intermediate frequency wireless communication circuit); specifically, a 465HZ intermediate frequency wireless transmitting unit is arranged in the communication starting device, a 465HZ intermediate frequency wireless receiving unit is arranged in the electronic conference table, and intermediate frequency wireless communication between the communication starting device and the electronic conference table is realized by combining the 465HZ intermediate frequency wireless transmitting unit and the 465HZ intermediate frequency wireless receiving unit;
step S3: after receiving the first instruction, the second micro-processing unit of the electronic conference table board activates and wakes up a third communication module (a second WIFI communication circuit and/or a Bluetooth communication circuit) of the electronic conference table board, and obtains a display content rewriting and updating instruction (a second instruction) of the man-machine interaction device by utilizing the third communication module;
step S4: after the contents of the display module of the electronic conference table card are rewritten and updated, the second micro-processing unit reports the contents of the electronic conference table card terminal to rewrite and update state and unique ID identification information through a WIFI network, and the third communication module is automatically turned off to supply power after reporting is completed, and the electronic conference table card terminal enters an interrupt state;
step S5: and the management software of the man-machine interaction equipment updates and displays the state of the electronic conference table card terminal by receiving the distribution network state and the unique ID identification information of the electronic conference table card terminal and rewriting the update state and the unique ID identification information of the electronic conference table card terminal.
As a preferred solution of the above embodiment, referring to fig. 2 to 4, the electronic conference table board includes a vertical standing board 1 and a base 2 supporting the vertical standing board 1, the base 2 includes a triangle structure, a display module is provided on the vertical standing board 1, and a third communication module is provided inside the vertical standing board 1. So set up, support vertical riser 1 through triangle-shaped structure's base 2 to ensure the stable setting of vertical riser 1, simple structure practicality is strong.
Specifically, the vertical upright plate 1 is detachably connected with the base 2, the base 2 is provided with a groove part 201, and the groove part 201 is used for accommodating at least part of the vertical upright plate 1; the inner bottom of the groove 201 is provided with a first mounting hole 102, the bottom of the vertical plate 1 is provided with a second mounting hole 202, the first mounting hole 102 and the second mounting hole 202 are used for the fixing piece 3 to pass through in sequence, and the fixing piece 3 is used for fixing the vertical plate 1 and the base 2 to each other. So set up, set up vertical riser 1 and base 2 to detachable connection, be convenient for carry out respectively unified recovery to vertical riser 1 and base 2. In this embodiment, the fixing member 3 may be selected as a fixing bolt, the first mounting hole 102 may be selected as a through hole, the second mounting hole 202 may be selected as a threaded hole, and the fixing bolt is threaded with the threaded hole after passing through the through hole, so as to achieve mutual fixation between the vertical plate 1 and the base 2, and the structure is simple and practical.
Specifically, the bottom of the base 2 is provided with a plurality of anti-slip shims 203, wherein a portion of the anti-slip shims 203 are coaxially aligned with the first mounting hole 102. So set up, utilize anti-skidding gasket 203 to increase the coefficient of friction between base 2 and the desktop to ensure that electronic conference table tablet can place on the desktop steadily, simple structure is practical strong. Meanwhile, part of the anti-slip pad 203 is arranged in the coaxial alignment of the first mounting holes 102, so that the end part of the fixing piece 3 is prevented from being exposed, and the overall attractiveness is improved.
Specifically, the display device comprises two display modules which are respectively arranged on two opposite sides of the vertical plate 1. So set up, set up display module in the opposite both sides of erectting upright board 1, the user that is convenient for lie in both sides can both ensure affiliated people's information on its display module.
Specifically, the display module includes an ink electronic screen 101. So configured, the ink electronic screen 101 is made up of a number of electronic inks that can be viewed as individual capsules. Each capsule is internally provided with liquid charges, wherein positive charges are dyed white, negative charges are dyed black, positive charges and negative charges are dyed red, and black-white red particles move to display imaging under the drive of an electric field. Because the electronic ink has bistable hysteresis effect, even if the battery is not powered, the small ball can not return to the original state or enter a random chaotic state, but the state of the final picture is kept, so the ink electronic screen 101 is extremely suitable for being applied to the use scene of the electronic conference table board.
It should be noted that, other contents of the electronic conference table board system disclosed in the present utility model are related art, and are not described herein.
In addition, it should be noted that, if there is a directional indication (such as up, down, left, right, front, and rear … …) in the embodiment of the present utility model, the directional indication is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is correspondingly changed.
Furthermore, it should be noted that the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The foregoing is merely an alternative embodiment of the present utility model, and is not intended to limit the scope of the present utility model, and all applications of the present utility model directly/indirectly in other related technical fields are included in the scope of the present utility model.
Claims (10)
1. An electronic conference table card system, characterized in that: the electronic conference table card comprises a first communication module, a second communication module and a plurality of electronic conference table cards; the electronic conference table board comprises a third communication module and a display module; the first communication module is used for being connected with external man-machine interaction equipment, and is used for receiving a first instruction of the man-machine interaction equipment; the second communication module is used for being connected with the electronic conference table board, the second communication module is used for sending the first instruction to the electronic conference table board, the first instruction is used for starting the third communication module of the electronic conference table board, the electronic conference table board is in bidirectional connection with the man-machine interaction device through the third communication module, the third communication module is used for receiving the second instruction of the man-machine interaction device, and the second instruction is used for rewriting and updating display contents of the display module.
2. The electronic conference table card system of claim 1, wherein: the first communication module comprises a network port interface circuit and/or a first WIFI communication circuit, and the first communication module is connected with the man-machine interaction device through the network port interface circuit and/or the first WIFI communication circuit.
3. The electronic conference table card system of claim 1, wherein: the second communication module comprises an intermediate frequency wireless communication circuit, and the second communication module is connected with the electronic conference table board through the intermediate frequency wireless communication circuit.
4. The electronic conference table card system of claim 3, wherein: the signal frequencies of the intermediate frequency wireless communication circuit comprise 465kHz, 400kHz, 315M, 433M and 973M.
5. The electronic conference table card system of claim 1, wherein: the third communication module comprises a second WIFI communication circuit and/or a Bluetooth communication circuit, and the electronic conference table board is in bidirectional connection with the man-machine interaction device through the second WIFI communication circuit and/or the Bluetooth communication circuit.
6. The electronic conference table card system of claim 1, wherein: the electronic conference table board comprises a vertical plate and a base for supporting the vertical plate, wherein the display module is arranged on the vertical plate, and the third communication module is arranged in the vertical plate.
7. The electronic conference table card system of claim 6, wherein: the vertical plate is detachably connected with the base, a groove part is arranged on the base, and the groove part is used for accommodating at least part of the vertical plate; the bottom in recess portion is equipped with first mounting hole, the bottom of vertical riser is equipped with the second mounting hole, first mounting hole with the second mounting hole is used for supplying the mounting to pass in proper order, the mounting is used for with vertical riser with the base is fixed each other.
8. The electronic conference table card system of claim 7, wherein: the bottom of base is equipped with a plurality of anti-skidding gaskets, wherein part anti-skidding gasket with first mounting hole coaxial alignment.
9. The electronic conference table card system of claim 6, wherein: the display device comprises two display modules, wherein the two display modules are respectively arranged on two opposite sides of the vertical plate.
10. The electronic conference table card system of claim 9, wherein: the display module includes an ink electronic screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320111031.9U CN219696022U (en) | 2023-01-16 | 2023-01-16 | Electronic conference table card system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320111031.9U CN219696022U (en) | 2023-01-16 | 2023-01-16 | Electronic conference table card system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219696022U true CN219696022U (en) | 2023-09-15 |
Family
ID=87967748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320111031.9U Active CN219696022U (en) | 2023-01-16 | 2023-01-16 | Electronic conference table card system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219696022U (en) |
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2023
- 2023-01-16 CN CN202320111031.9U patent/CN219696022U/en active Active
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