CN208924233U - A kind of super low-power consumption bluetooth-serial ports transparent transmission conversion module - Google Patents
A kind of super low-power consumption bluetooth-serial ports transparent transmission conversion module Download PDFInfo
- Publication number
- CN208924233U CN208924233U CN201821002860.9U CN201821002860U CN208924233U CN 208924233 U CN208924233 U CN 208924233U CN 201821002860 U CN201821002860 U CN 201821002860U CN 208924233 U CN208924233 U CN 208924233U
- Authority
- CN
- China
- Prior art keywords
- circuit
- bluetooth
- power consumption
- low
- power
- 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.)
- Expired - Fee Related
Links
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
- Small-Scale Networks (AREA)
- Mobile Radio Communication Systems (AREA)
- Transceivers (AREA)
Abstract
The utility model belongs to embedded system technology field, discloses a kind of super low-power consumption bluetooth-serial ports transparent transmission conversion module, including power circuit (1), Bluetooth circuit (2), low-power consumption mcu circuit (3).The utility model provide it is a kind of it is novel use disposable lithium cell directly to power based on battery powered super low-power consumption bluetooth-serial ports conversion module, standby current 2uA, has timing wake-up and serial ports wakes up two ways.When user equipment sends data to module by serial ports, module can be automatically waken up, and the data for responding user equipment are sent by Bluetooth chip；In addition to this, it is also equipped with timing wake-up function, wakeup time is adjustable.
Description
Technical field
The utility model relates to embedded system technology field, specially a kind of super low-power consumption bluetooth-serial ports transparent transmission conversion
Module.
Background technique
Bluetooth is a kind of short-distance wireless communication technology, and data and language between fixed equipment and mobile device may be implemented
Sound communication, has become a standard interface in current mobile communications field, suffers from and be widely applied in various fields.
Serial ports is a standard interface of single-chip microcontroller, and single-chip microcontroller may be implemented and set using bluetooth-serial ports transparent transmission conversion module
The standby full-duplex communication between the bluetooth equipment of distal end.Since Bluetooth communication uses 2.4GHz wave band, so it is on PCB layout
With comparable difficulty, the single-chip microcontroller design engineer of general technology level is all made of and uses bluetooth-serial ports transparent transmission in the product
The mode of conversion module is achieved, so bluetooth-serial ports transparent transmission conversion module has relatively broad application field.
When carrying out design of electronic products, it is difficult that wireless device overcomes wireline equipment difficult wiring, cost height and construction
Spend many defects such as big.But it is not due to having wire cable directly to power, so itself taking electric problem is wireless device extensive
In application, Important Problems to be solved.A variety of sides such as solar energy, wind energy, pressure and kinetic energy can be used to wireless device power supply
Formula, but these power taking technologies are not also high and very big by environmental constraints in transfer efficiency at this stage, may not apply to all nothings
Line equipment.In addition to this, technology the most universal is directly powered using battery, and this mode is the most flexible and convenient, not by ground
The influence of domain environment can use for a long time in any place.But, it due to the supply approach of not no energy, but also need to examine
Consider the multiple factors such as capacity, volume and cost of battery, if it is desired to equipment can long-play, must just reduce equipment
Oneself power consumption.Existing bluetooth-serial ports transparent transmission conversion module, in power consumption, there are many deficiencies: (1) due to Bluetooth technology
Oneself power consumption is relatively high, and related to transmission range.Existing low-power consumption bluetooth chip is averaged when moderate distance is transmitted
Electric current is consumed in 40mA or so, is calculated by this numerical value, the battery of a 2200mAh, is only capable of that equipment is maintained to work 2.29 days
(2200mAh/40mA/24h=2.29 day)；(2) in general, most of wireless device does not all need to work long hours continuous
Uninterrupted state can control the input power of module to reduce bluetooth-serial ports transparent transmission conversion module power consumption, make it big
Part-time is in power-down state, and to save power consumption, but this mode will lead to the direct loss of data, and it is remote to be unable to real-time response
The problems such as the data that end bluetooth equipment is passed over；(3) existing bluetooth-its power supply of serial ports transparent transmission conversion module by with
Equipment supply in family cannot provide power supply to user equipment.
Summary of the invention
The purpose of this utility model is to provide a kind of novel based on battery powered super low-power consumption bluetooth-serial ports turn
Block is changed the mold, disposable lithium cell is used directly to power, standby current 2uA, has timing wake-up and serial ports wakes up two ways.
When user equipment sends data to module by serial ports, module can be automatically waken up, and the data for responding user equipment pass through bluetooth
Chip is sent；In addition to this, it is also equipped with timing wake-up function, wakeup time is adjustable, if do not received remote after wake-up
The data that end bluetooth equipment sends over, are again introduced into sleep pattern at once, this process time-consuming is 10ms；Module is provided out can
Power supply is controlled to power to user equipment, under normal state, is powered off to user equipment, only when receiving Bluetooth wireless data,
Just it is powered on to user equipment to save overall power.It the use of the time is common bluetooth-if calculated according to 10 seconds Wakeup intervals
1000 times of serial ports transparent transmission conversion module working time, it is contemplated that the factors such as power consumption, battery capacity of user equipment, by 50%
Effective percentage calculates, and the battery of 2200mAh can make equipment work 3.13.
To achieve the above object, the utility model provides the following technical solutions: a kind of super low-power consumption bluetooth-serial ports transparent transmission turn
Change the mold block, including power circuit (1), Bluetooth circuit (2), low-power consumption mcu circuit (3)；Described power circuit (1) power circuit
(1) using 3.7V reason battery power supply, power supply is provided for Bluetooth circuit (2), low-power consumption mcu circuit (3) and user equipment, wherein blue
The power supply of tooth circuit (2) and user equipment is controlled by low-power consumption mcu circuit (3)；Described Bluetooth circuit (2) Bluetooth circuit (2)
For with distal end bluetooth devices, the data received are passed into low-power consumption mcu(3), and by low-power consumption mcu circuit (3)
The data sended over are transmitted to distal end bluetooth equipment, and power supply is controlled by low-power consumption mcu circuit (3)；The low-power consumption mcu
Circuit (3) low-power consumption mcu circuit (3) controls the power supply of Bluetooth circuit (2) and user equipment, uses SPI interface and bluetooth electricity
Road connection, is connect using serial ports with user equipment, is responsible for completing the data exchange between user equipment and distal end bluetooth equipment.
Preferably, the power circuit (1) power circuit (1) using 3.7V reason battery power supply, be Bluetooth circuit (2),
Low-power consumption mcu circuit (3) and user equipment provide power supply, and wherein the power supply of Bluetooth circuit (2) and user equipment is by low-power consumption mcu
Circuit (3) control;Lithium battery connects DP1 interface and supplies power supply BAT to module, and BAT is given by DU3 chip MCP33 pressure stabilizing for 3.3V
Entire module for power supply；BAT also passes through 2 controllable metal-oxide-semiconductor DQ1 and connects chip DU1 and DU2 with DQ3, generates controllable voltage
W3.3V and E3.3V；W3.3V is used to power to Bluetooth circuit (2), and E3.3V is used to power to user equipment；W3.3V and E3.3V
Control terminal by low-power consumption mcu circuit (3) generate, controlled by C_W and C_E.
Preferably, the Bluetooth circuit (2) Bluetooth circuit (2) be used for distal end bluetooth devices, by what is received
Data pass to low-power consumption mcu(3), and the data that low-power consumption mcu circuit (3) sends over are transmitted to distal end bluetooth equipment,
Its power supply is controlled by low-power consumption mcu circuit (3);Circuit is by Bluetooth chip WU1, filter WJ1, bluetooth PCB antenna and its periphery
Circuit composition；The model that WU1 is used is CC2540F256RHAR, and the model that WJ1 is used is JT1_2405BM15A0002, bluetooth
Antenna is achieved by PCB mode；Its external 32M crystal oscillator, power supply are isolated using L_BEAD_102 inductance, and all power supplys draw
Foot does decoupling processing；Reset pin connects rc reset circuit；Its power supply by power circuit (1) provide, using SPI interface CS,
SCK, MOSI and MISO are communicated with low-power consumption mcu circuit (3).
Preferably, low-power consumption mcu circuit (3) the low-power consumption mcu circuit (3) control Bluetooth circuit (2) and user set
Standby power supply is connect with Bluetooth circuit using SPI interface, is connect using serial ports with user equipment, is responsible for completing user equipment
With the data exchange between the bluetooth equipment of distal end;Circuit is STM32L053R8T6 by its model of low-power consumption mcu chip MU1(), journey
Sequence download interface MP1, Transistor-Transistor Logic level serial line interface MP2 composition；It passes through SPI interface CS, SCK, MOSI and MISO signal and bluetooth
Circuit (2) communication；The power supply of Bluetooth circuit (2) and user equipment is controlled, by C_W and C_E signal to reduce overall power.
Compared with prior art, the beneficial effects of the utility model are as follows:
(1) transparent transmission of data between distal end bluetooth module and user equipment is realized；
(2) ultralow Consumption, standby current are lower than 2uA；
(3) 10 seconds Wakeup intervals are used, under conditions of the supply of no any power supply, can be worked using 2200mAh battery
3.13 year；
(4) it is suitable near radio data communication；
(5) it is automatically waken up when user equipment sends data, the timing wake-up time is settable；
(6) power supply can be provided to user equipment.
Detailed description of the invention
The utility model relates to the Detailed description of the invention arrived is as follows:
Fig. 1 is the system the general frame of utility model；Fig. 2 is power circuit diagram；Fig. 3 is Bluetooth circuit figure；Fig. 4 is low function
Consume mcu circuit diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1,
A kind of super low-power consumption bluetooth-serial ports transparent transmission conversion module, including power circuit (1), Bluetooth circuit (2), low-power consumption
Mcu circuit (3)；Power circuit (1) power circuit (1) is Bluetooth circuit (2), low function using 3.7V reason battery power supply
It consumes mcu circuit (3) and user equipment provides power supply, wherein the power supply of Bluetooth circuit (2) and user equipment is by low-power consumption mcu circuit
(3) it controls；Bluetooth circuit (2) Bluetooth circuit (2) be used for distal end bluetooth devices, by the data received transmit
Be transmitted to distal end bluetooth equipment to low-power consumption mcu(3), and by the data that low-power consumption mcu circuit (3) sends over, power supply by
Low-power consumption mcu circuit (3) control；Described low-power consumption mcu circuit (3) low-power consumption mcu circuit (3) control Bluetooth circuit (2) and
The power supply of user equipment is connect with Bluetooth circuit using SPI interface, is connect using serial ports with user equipment, is responsible for completing to use
Data exchange between family equipment and distal end bluetooth equipment.
Fig. 1 and 2 is please referred to,
Power circuit (1) power circuit (1) is Bluetooth circuit (2), low-power consumption mcu circuit using 3.7V reason battery power supply
(3) and user equipment provides power supply, and wherein the power supply of Bluetooth circuit (2) and user equipment is controlled by low-power consumption mcu circuit (3);
Lithium battery connects DP1 interface and supplies power supply BAT to module, and BAT is 3.3V to entire module for power supply by the MCP33 pressure stabilizing of DU3 chip；
BAT also passes through 2 controllable metal-oxide-semiconductor DQ1 and connects chip DU1 and DU2 with DQ3, generates controllable voltage W3.3V and E3.3V；
W3.3V is used to power to Bluetooth circuit (2), and E3.3V is used to power to user equipment；The control terminal of W3.3V and E3.3V is by low function
It consumes mcu circuit (3) to generate, be controlled by C_W and C_E.
Circuit theory: power circuit (1) generates 3 road 3.3V power supplys, gives low-power consumption mcu circuit (3), Bluetooth circuit respectively
(1) it powers with user equipment；Wherein low-power consumption mcu circuit (3) is in continuous energized state, is generated by it 2 control signal C_W
Power supply with C_E to control Bluetooth circuit (1) and user equipment；Control circuit uses MOS control method, the metal-oxide-semiconductor of selection
DQ1 and DQ3 leakage current very little, when it is in when state, leakage current is less than 1uA, almost can be ignored, so whole
The power consumption of a module need to only consider the power consumption of low-power consumption mcu circuit (3) in the most of the time.
Fig. 1 and 3 are please referred to,
Bluetooth circuit (2) Bluetooth circuit (2) be used for distal end bluetooth devices, the data received are passed into low function
Consume mcu(3), and the data that low-power consumption mcu circuit (3) sends over are transmitted to distal end bluetooth equipment, power supply is by low-power consumption
Mcu circuit (3) control;Circuit is made of Bluetooth chip WU1, filter WJ1, bluetooth PCB antenna and its peripheral circuit；WU1 is adopted
Model is CC2540F256RHAR, and the model that WJ1 is used is JT1_2405BM15A0002, and Bluetooth antenna is given by PCB mode
To realize；Its external 32M crystal oscillator, power supply are isolated using L_BEAD_102 inductance, and all power pins do decoupling processing；
Reset pin connects rc reset circuit；Its power supply by power circuit (1) provide, using SPI interface CS, SCK, MOSI and MISO with
Low-power consumption mcu circuit (3) communication.
Circuit theory: circuit by bluetooth wireless mode and distal end bluetooth devices, by SPI interface CS, SCK,
MOSI and MISO signal is communicated with low-power consumption mcu circuit (3), and power supply is controlled by low-power consumption mcu circuit (3), under normal state
In off-position, to save power consumption.
Fig. 1 and 4 are please referred to,
Low-power consumption mcu circuit (3) low-power consumption mcu circuit (3) controls the power supply of Bluetooth circuit (2) and user equipment, makes
It is connect with SPI interface with Bluetooth circuit, is connect using serial ports with user equipment, be responsible for completing user equipment and distal end bluetooth equipment
Between data exchange;Circuit is STM32L053R8T6 by its model of low-power consumption mcu chip MU1(), program download interface MP1,
Transistor-Transistor Logic level serial line interface MP2 composition；It is communicated by SPI interface CS, SCK, MOSI and MISO signal with Bluetooth circuit (2)；It is logical
The power supply of C_W and C_E signal control Bluetooth circuit (2) and user equipment is crossed, to reduce overall power.
Circuit theory: power circuit (1) gives low-power consumption mcu circuit (3) continued power, but low-power consumption mcu circuit (3) is usually
Power down process is carried out in sleep state, and to Bluetooth circuit (2) and user equipment, so overall power is lower than 2uA；Low-power consumption
Mcu has serial port wake-up and timing wake-up two ways, when user equipment passes through serial ports to its (user equipment is independently-powered)
It automatically wakes up when transmission data, or automatically wakes up by the prior preset time；After low-power consumption mcu wakes up, Bluetooth circuit is given
(2) it powers, detects aerial carrier signal, if detected, be directly entered normal mode of operation, if detection is less than standing
Quarter sleeps again, to achieve the purpose that reduce power consumption.
In summary: a kind of super low-power consumption bluetooth-serial ports transparent transmission conversion module realizes that distal end bluetooth module is set with user
The transparent transmission of data between standby, ultralow Consumption, standby current are lower than 2uA, use 10 seconds Wakeup intervals, do not having
Under conditions of the supply of any power supply, it can be worked 3.13 using 2200mAh battery, it is suitable near radio data communication,
Its user equipment automatically wakes up when sending data, and the timing wake-up time is settable, can provide power supply to user equipment, therefore have
Effect solves the deficiencies in the prior art.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of super low-power consumption bluetooth-serial ports transparent transmission conversion module, including power circuit (1), Bluetooth circuit (2), low-power consumption mcu
Circuit (3)；It is characterized by: the power circuit (1) is using 3.7V reason battery power supply, it is Bluetooth circuit (2), low-power consumption
Mcu circuit (3) and user equipment provide power supply, and wherein the power supply of Bluetooth circuit (2) and user equipment is by low-power consumption mcu circuit
(3) it controls；The Bluetooth circuit (2) be used for distal end bluetooth devices, the data received are passed into low-power consumption mcu
Circuit (3), and the data that low-power consumption mcu circuit (3) sends over are transmitted to distal end bluetooth equipment, power supply is by low-power consumption
Mcu circuit (3) control；The power supply of low-power consumption mcu circuit (3) control Bluetooth circuit (2) and user equipment, uses
SPI interface is connect with Bluetooth circuit, is connect using serial ports with user equipment, be responsible for completing user equipment and distal end bluetooth equipment it
Between data exchange.
2. a kind of super low-power consumption bluetooth-serial ports transparent transmission conversion module according to claim 1 is it is characterized in that, the electricity
Source circuit (1) provides power supply using 3.7V reason battery power supply for Bluetooth circuit (2), low-power consumption mcu circuit (3) and user equipment,
Wherein the power supply of Bluetooth circuit (2) and user equipment is controlled by low-power consumption mcu circuit (3);Lithium battery connects DP1 interface and supplies to module
Giving power supply BAT, BAT is 3.3V to entire module for power supply by the MCP33 pressure stabilizing of DU3 chip；BAT also passes through 2 controllable metal-oxide-semiconductors
DQ1 connects chip DU1 and DU2 with DQ3, generates controllable voltage W3.3V and E3.3V；W3.3V is used to supply to Bluetooth circuit (2)
Electricity, E3.3V are used to power to user equipment；The control terminal of W3.3V and E3.3V is generated by low-power consumption mcu circuit (3), passes through C_W
It is controlled with C_E.
3. a kind of super low-power consumption bluetooth-serial ports transparent transmission conversion module according to claim 1 is it is characterized in that, the indigo plant
Tooth circuit (2) is used to the data received are passed to low-power consumption mcu circuit (3), and will be low with distal end bluetooth devices
The data that power consumption mcu circuit (3) sends over are transmitted to distal end bluetooth equipment, and power supply is controlled by low-power consumption mcu circuit (3);
Circuit is made of Bluetooth chip WU1, filter WJ1, bluetooth PCB antenna and its peripheral circuit；WU1 use model be
The model that CC2540F256RHAR, WJ1 are used is JT1_2405BM15A0002, and Bluetooth antenna is achieved by PCB mode；Its
External 32M crystal oscillator, power supply are isolated using L_BEAD_102 inductance, and all power pins do decoupling processing；Reset pin
Connect rc reset circuit；Its power supply is provided by power circuit (1), using SPI interface CS, SCK, MOSI and MISO and low-power consumption
Mcu circuit (3) communication.
4. a kind of super low-power consumption bluetooth-serial ports transparent transmission conversion module according to claim 1 is it is characterized in that, described is low
Power consumption mcu circuit (3) controls the power supply of Bluetooth circuit (2) and user equipment, is connect, is made with Bluetooth circuit using SPI interface
It is connect with serial ports with user equipment, is responsible for completing the data exchange between user equipment and distal end bluetooth equipment;Circuit is by low function
Consume its model of mcu chip MU1(be STM32L053R8T6), program download interface MP1, Transistor-Transistor Logic level serial line interface MP2 composition；Its
It is communicated by SPI interface CS, SCK, MOSI and MISO signal with Bluetooth circuit (2)；Bluetooth electricity is controlled by C_W and C_E signal
The power supply of road (2) and user equipment, to reduce overall power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821002860.9U CN208924233U (en) | 2018-06-27 | 2018-06-27 | A kind of super low-power consumption bluetooth-serial ports transparent transmission conversion module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821002860.9U CN208924233U (en) | 2018-06-27 | 2018-06-27 | A kind of super low-power consumption bluetooth-serial ports transparent transmission conversion module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208924233U true CN208924233U (en) | 2019-05-31 |
Family
ID=66694885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821002860.9U Expired - Fee Related CN208924233U (en) | 2018-06-27 | 2018-06-27 | A kind of super low-power consumption bluetooth-serial ports transparent transmission conversion module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208924233U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110366039A (en) * | 2019-07-12 | 2019-10-22 | 四川长虹电器股份有限公司 | The compatibility method of different bluetooth mould groups under a kind of android system |
| CN113873484A (en) * | 2021-09-09 | 2021-12-31 | 中云汇(成都)物联科技有限公司 | Low-power-consumption Bluetooth-to-serial-port transparent transmission equipment and transmission method |
| CN113939001A (en) * | 2021-12-13 | 2022-01-14 | 泰克曼(南京)电子有限公司 | Ultra-low power consumption communication method between MCU and BLE chip |
-
2018
- 2018-06-27 CN CN201821002860.9U patent/CN208924233U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110366039A (en) * | 2019-07-12 | 2019-10-22 | 四川长虹电器股份有限公司 | The compatibility method of different bluetooth mould groups under a kind of android system |
| CN113873484A (en) * | 2021-09-09 | 2021-12-31 | 中云汇(成都)物联科技有限公司 | Low-power-consumption Bluetooth-to-serial-port transparent transmission equipment and transmission method |
| CN113939001A (en) * | 2021-12-13 | 2022-01-14 | 泰克曼(南京)电子有限公司 | Ultra-low power consumption communication method between MCU and BLE chip |
| CN113939001B (en) * | 2021-12-13 | 2022-04-19 | 泰克曼(南京)电子有限公司 | Ultra-low power consumption communication method between MCU and BLE chip |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208924233U (en) | A kind of super low-power consumption bluetooth-serial ports transparent transmission conversion module | |
| CN208924395U (en) | A kind of super low-power consumption lora- serial ports transparent transmission conversion module | |
| CN104464103A (en) | STS (standard transfer specification) split electricity meter based on low-power-consumption carrier communication mode | |
| CN208572452U (en) | A kind of super low-power consumption wifi- serial ports transparent transmission conversion module | |
| CN202889340U (en) | Low-power short-distance wireless data transmission module | |
| CN201697747U (en) | Pressure transmitter and pressure transmission module | |
| CN107318154A (en) | Low power consumption method based on Lora communicators | |
| CN204614195U (en) | The intelligent wireless instrument of a kind of band 485 communication functions | |
| CN207164931U (en) | A kind of low-consumption wireless doorbell | |
| CN105375584A (en) | Timing low-power consumption energy-saving apparatus | |
| CN208623661U (en) | A kind of super low-power consumption nbiot- serial ports transparent transmission conversion module | |
| CN206711367U (en) | A kind of general extremely low power dissipation hydrology sensor wireless transparent transmission adapter | |
| CN102314837A (en) | Colored electronic signboard and power-supply control method thereof | |
| CN102073313A (en) | Remote management measurement and control system of solar photovoltaic power stations | |
| CN107561991A (en) | A kind of switching on and shutting down management circuit and terminal | |
| CN208421596U (en) | A kind of low-power consumption sound collection equipment automatically waken up with suspend mode | |
| CN208046685U (en) | Low-power consumption smart machine shell | |
| CN108429663A (en) | A kind of intelligence with human-computer interaction interface energy managing device | |
| CN211123972U (en) | Energy efficiency communication and energy-saving control terminal based on 4G and carrier wave | |
| CN208924232U (en) | A kind of super low-power consumption gprs- serial ports transparent transmission conversion module | |
| CN206460605U (en) | A kind of micropower radio ammeter communicator | |
| CN212727059U (en) | Photovoltaic energy storage monitoring gateway device based on loRa | |
| CN205484867U (en) | Low -power consumption automatic meteorological station based on ARM11 | |
| CN204559893U (en) | Wireless communication device, table meter inquiry unit and table meter inquiry system | |
| CN108196604A (en) | Luminous energy powered, wireless temperature control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190531 Termination date: 20210627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |