CN109064729A - A kind of kilowatt meter reading-out system and meter register method based on wireless sensor network - Google Patents
A kind of kilowatt meter reading-out system and meter register method based on wireless sensor network Download PDFInfo
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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Abstract
The present invention is suitable for industry internet field, provides a kind of kilowatt meter reading-out system based on wireless sensor network, including management server, coordinator and multiple intelligent electric meters；Intelligent electric meter obtains electricity consumption data；Intelligent electric meter within a preset period of time, randomly selects time interval, in the time interval randomly selected, using preset Channel Detection mode, detects the channel of wireless sensor network, and obtaining channel is the number that busy number and channel are the free time；It is idle ratio that intelligent electric meter, which is busy number and channel according to channel, generates channel loading index；Intelligent electric meter generates model, channel loading index, preset index avoidance initial value and preset index avoidance maximum value according to the duration of keeping out of the way pre-established, and duration is kept out of the way in generation；Intelligent electric meter sends coordinator for electricity consumption data by channel；After coordinator receives electricity consumption data, management server to is sent electricity consumption data by internet.The present invention is conducive to the efficiency of transmission of electricity consumption data.
Description
Technical field
The invention belongs to industry internet field more particularly to a kind of kilowatt meter reading-out system based on wireless sensor network and copy
Table method.
Background technique
Existing intelligent electric meter also has two-way more rate meterings, user other than the function of measuring for having electricity consumption
Hold Local or Remote control, the bidirectional data communication of various modes, the functions such as anti-electricity-theft.
However, the type and quantity of intelligent electric meter are continuously increased, and same place can exist along with the high speed development of society
The intelligent electric meter of magnanimity.Intelligent electric meter is when sending electricity consumption data, if multiple intelligent electric meters are detected simultaneously by the same channel
It is busy, and after waiting a period of time, multiple intelligent electric meters choose the same duration of keeping out of the way as competition window, then can not keep away
It will appear with exempting from because of multiple intelligent electric meters while there is a situation where electricity consumption datas to collide due to send electricity consumption data, so that each use
Electric data interfere with each other, in this way, electricity consumption data is easily lost during transmission, affect the reliable transmission of electricity consumption data,
It is unfavorable for improving the efficiency of transmission of electricity consumption data.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of kilowatt meter reading-out system based on wireless sensor network, it is intended to solve existing
Have in kilowatt meter reading-out system, electricity consumption data is easily lost during transmission, is unfavorable for improving asking for the efficiency of transmission of electricity consumption data
Topic.
The first aspect of the embodiment of the present invention provides a kind of kilowatt meter reading-out system based on wireless sensor network, including management
Server, coordinator and multiple intelligent electric meters, the intelligent electric meter are built-in with ZigBee module and supply for the ZigBee module
The lithium battery of electricity, the intelligent electric meter access wireless sensor network by ZigBee module；
The intelligent electric meter obtains electricity consumption data；
The intelligent electric meter within a preset period of time, randomly selects time interval, in the time interval randomly selected, adopts
With preset Channel Detection mode, the channel of wireless sensor network is detected, obtains that channel is busy number and channel is idle
Number；
It is idle ratio that the intelligent electric meter, which is busy number and channel according to channel, generates channel loading index；
The intelligent electric meter generates model, the channel loading index, preset moves back according to the duration of keeping out of the way pre-established
Index initial value and preset index avoidance maximum value are kept away, duration is kept out of the way in generation；
The intelligent electric meter executes a Channel Detection every the duration of keeping out of the way, if detecting channel idle and keeping out of the way meter
When device time when being reduced to zero, just access the channel；
The intelligent electric meter sends the coordinator for the electricity consumption data by the channel；
After the coordinator receives the electricity consumption data, the management to is sent the electricity consumption data by internet and is taken
Business device；
Wherein, the duration of keeping out of the way generates model, specifically:
Wherein, BY is to keep out of the way duration, and M indicates that channel is busy number, and N indicates that channel is idle number,Indicate net
Network load factor, PresetBE indicate that preset index avoidance initial value, MaxBE indicate preset index avoidance maximum value,
Timeslot is time slot.
Further, in the kilowatt meter reading-out system, the kilowatt meter reading-out system further include:
It is arranged in the intelligent electric meter, current location is positioned, the GPS module of GPS coordinate is generated.
Further, in the kilowatt meter reading-out system, the ZigBee module is connected with the GPS module, described
ZigBee module is also used to through the coordinator, sends the GPS coordinate to management server.
Further, in the kilowatt meter reading-out system, the kilowatt meter reading-out system further include:
It is arranged in the intelligent electric meter, current location is positioned, generates the Beidou positioning module of Beidou coordinate.
Further, in the kilowatt meter reading-out system, the ZigBee module is connected with the Beidou positioning module, institute
It states ZigBee module to be also used to through the coordinator, sends the Beidou coordinate to management server.
Further, in the kilowatt meter reading-out system, the Channel Detection mode is carrier wave detection pattern.
Further, in the kilowatt meter reading-out system, the Channel Detection mode is energy threshold detection pattern.
The second aspect of the embodiment of the present invention is to provide a kind of meter register method based on above-mentioned kilowatt meter reading-out system, applied to institute
State intelligent electric meter, comprising:
Obtain electricity consumption data；
Within a preset period of time, time interval is randomly selected, in the time interval randomly selected, using preset channel
Detection pattern detects the channel of wireless sensor network, and obtaining channel is the number that busy number and channel are the free time；
It is the ratio that busy number and channel are the free time according to channel, generates channel loading index；
Model, the channel loading index, preset index avoidance initial value are generated according to the duration of keeping out of the way pre-established
And duration is kept out of the way in preset index avoidance maximum value, generation；
A Channel Detection is executed every the duration of keeping out of the way, the time of channel idle and back-off timer subtracts if detecting
It is small to zero when, just access the channel；
The coordinator is sent by the electricity consumption data by the channel, so that the coordinator will by internet
The electricity consumption data sends the management server to；
Wherein, the duration of keeping out of the way generates model, specifically:
Wherein, BT is to keep out of the way duration, and M indicates that channel is busy number, and N indicates that channel is idle number,Indicate net
Network load factor, PresetBE indicate that preset index avoidance initial value, MaxBE indicate preset index avoidance maximum value,
Timeslot is time slot.
Further, in the method, the coordinator is sent for the electricity consumption data by the channel described,
So that the method is also wrapped after the coordinator sends the electricity consumption data to the management server by internet
It includes:
Detect whether the electricity consumption in the electricity consumption data reaches preset threshold, when the electricity consumption reaches preset threshold
When, it powers off immediately.
Further, in the method, whether the electricity consumption in the detection electricity consumption data reaches preset threshold,
When the electricity consumption reaches preset threshold, immediately after power-off, the method also includes:
Generate alarm signal.
The beneficial effects of the present invention are three aspects, and details are as follows:
In a first aspect, channel loading index is to be positively correlated with duration is kept out of the way, duration is kept out of the way in the reduction of channel loading index
It reduces, when channel loading index increases, keeps out of the way duration and also increase, such benefit is to improve the network throughput of channel；
Second aspect, using preset Channel Detection mode, detects wireless sensor in the time interval randomly selected
The channel of network, obtains that channel is busy number and channel is idle number, be busy number and channel according to channel is empty
Not busy ratio generates channel loading index, due to being in the time interval randomly selected, the letter of each intelligent electric meter
Road load factor is generally different, and therefore, the index avoidance of each intelligent electric meter is generally also different, therefore, can advantageously reduce more
A intelligent electric meter sends electricity consumption data simultaneously and there is a situation where electricity consumption datas to collide；
The third aspect randomly selects index avoidance so that each intelligent electric meter to keep out of the way duration less same, therefore, can be into
One step advantageously reduce multiple intelligent electric meters and meanwhile send electricity consumption data and there is a situation where electricity consumption data is collided, to reduce each
Electricity consumption data interferes with each other, and then improves the efficiency of transmission of electricity consumption data.
Detailed description of the invention
Fig. 1 is the structural block diagram of kilowatt meter reading-out system provided in an embodiment of the present invention；
Fig. 2 is the implementation flow chart of meter register method provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment one
Fig. 1 is the structural block diagram of kilowatt meter reading-out system provided in an embodiment of the present invention, and details are as follows:
A kind of kilowatt meter reading-out system based on wireless sensor network, including management server, coordinator and multiple intelligent electric meters,
The intelligent electric meter is built-in with ZigBee module and the lithium battery for ZigBee module power supply, and the intelligent electric meter passes through
ZigBee module accesses wireless sensor network；
The intelligent electric meter obtains electricity consumption data；
The intelligent electric meter within a preset period of time, randomly selects time interval, in the time interval randomly selected, adopts
With preset Channel Detection mode, the channel of wireless sensor network is detected, obtains that channel is busy number and channel is idle
Number；
It is idle ratio that the intelligent electric meter, which is busy number and channel according to channel, generates channel loading index；
The intelligent electric meter generates model, the channel loading index, preset moves back according to the duration of keeping out of the way pre-established
Index initial value and preset index avoidance maximum value are kept away, duration is kept out of the way in generation；
The intelligent electric meter executes a Channel Detection every the duration of keeping out of the way, if detecting channel idle and keeping out of the way meter
When device time when being reduced to zero, just access the channel；
The intelligent electric meter sends the coordinator for the electricity consumption data by the channel；
After the coordinator receives the electricity consumption data, the management to is sent the electricity consumption data by internet and is taken
Business device；
Wherein, the duration of keeping out of the way generates model, specifically:
Wherein, BT is to keep out of the way duration, and M indicates that channel is busy number, and N indicates that channel is idle number,Indicate net
Network load factor, PresetBE indicate that preset index avoidance initial value, MaxBE indicate preset index avoidance maximum value,
Timeslot is time slot.
Wherein, the intelligent electric meter within a preset period of time, randomly selects time interval, in the time interval randomly selected
It is interior, using preset Channel Detection mode, the channel of wireless sensor network is detected, obtaining channel is that busy number is with channel
Idle number, the technical effect that can be generated are as follows: due to being in the time interval randomly selected, each intelligent electric meter
Channel loading index is generally different, and the index avoidance of each intelligent electric meter is generally also different, and therefore, each intelligent electric meter chooses phase
It is reduced with the probability for keeping out of the way duration, therefore, multiple intelligent electric meters can be advantageously reduced while sending electricity consumption data and electricity consumption occurs
The case where data collision.
For purposes of illustration only, being 3600ms with preset time period, for time interval is 800ms, details are as follows:
The intelligent electric meter randomly selects 800ms in 1 to 3600ms, in the 800ms, using preset channel
Detection pattern detects the channel of wireless sensor network, and obtaining channel is the number that busy number and channel are the free time.
For example, the intelligent electric meter in 1 to 3600ms, chooses 200 to 1000ms as time interval, alternatively, choosing
600 to 1400ms as time interval, in the 800ms, using preset Channel Detection mode, detects wireless sensor network
The channel of network, obtaining channel is the number that busy number and channel are the free time.
Wherein, management server can be gateway, be also possible to Internet of Things access point.Gateway is also known as gateway, association
Discuss converter.
Wherein, from keep out of the way duration generate model It is found that BT andPositive correlation, channel loading index it is smaller, keep out of the way that duration is smaller to be referred in channel loading
When number is bigger, keep out of the way the technical effect that duration is also bigger, can generate are as follows: improve the network throughput of channel.
For purposes of illustration only, M indicates that channel is busy number, it is set as 18；N indicates that channel is idle number, is set as 10；
It is 1.8；PresetBE indicates preset index avoidance initial value, is set as 2；MaxBE indicates preset index avoidance maximum value, if
It is 8, is exemplified below:
BT=(2Random { INT (1.8*2), 8 }-1)*Timeslot；
Wherein, random function randomly selects a number in 3 to 8, when selection be 3 when, when keeping out of the way at a length of 7
Gap.The size of time slot is set certainly for user or default, it may be preferable that time slot is set as 0.5ms.In this way, keeping out of the way duration and being just
3.5ms。
Wherein, the intelligent electric meter every it is described keep out of the way duration execute a Channel Detection, if detect channel idle and
When the time of back-off timer is reduced to zero, the channel is just accessed, specifically:
The intelligent electric meter executes a Channel Detection every the duration of keeping out of the way, while detecting the time of back-off timer
Whether it is reduced to zero, if detect that the time of channel idle and back-off timer is reduced to zero, just accesses the channel.
Wherein, the time of back-off timer is user from setting or default, herein with no restrictions.
Wherein, each ZigBee module has a unique international mobile subscriber identity, in wireless sensor network
In, coordinator identifies different ZigBee modules by international mobile subscriber identity, and then identifies different intelligent electric meters.
Wherein, the Channel Detection mode is carrier wave detection pattern or energy threshold detection pattern.Since carrier wave detects mould
Formula or energy threshold detection pattern are common Channel Detection mode, and specific implementation process, this will not be repeated here.
It is busy number and channel according to channel is idle ratio that channel loading index, which is exactly intelligent electric meter, for describing
The load condition of channel.
In embodiments of the present invention, beneficial effect is three aspects, and details are as follows:
In a first aspect, channel loading index is to be positively correlated with duration is kept out of the way, duration is kept out of the way in the reduction of channel loading index
It reduces, when channel loading index increases, keeps out of the way duration and also increase, the technical effect that can be generated are as follows: the network for improving channel gulps down
The amount of spitting；
Second aspect, using preset Channel Detection mode, detects wireless sensor in the time interval randomly selected
The channel of network, obtains that channel is busy number and channel is idle number, be busy number and channel according to channel is empty
Not busy ratio generates channel loading index, due to being in the time interval randomly selected, the channel of each intelligent electric meter
Load factor is generally different, and the index avoidance of each intelligent electric meter is generally also different, and therefore, each intelligent electric meter chooses identical move back
The probability for keeping away duration is reduced, and therefore, can be advantageously reduced multiple intelligent electric meters while be sent electricity consumption data and electricity consumption data occurs
The case where collision；
The third aspect randomly selects index avoidance so that each intelligent electric meter to keep out of the way duration less same, therefore, can be into
One step advantageously reduce multiple intelligent electric meters and meanwhile send electricity consumption data and there is a situation where electricity consumption data is collided, to reduce each
Electricity consumption data interferes with each other, and then improves the efficiency of transmission of electricity consumption data.
Embodiment two
Fig. 2 is the implementation flow chart of meter register method provided in an embodiment of the present invention, and details are as follows:
S201 obtains electricity consumption data；
S202 randomly selects time interval within a preset period of time, in the time interval randomly selected, using default
Channel Detection mode, detect the channel of wireless sensor network, obtain that channel is busy number and channel is idle number；
It is idle ratio that S203, which is busy number and channel according to channel, generates channel loading index；
S204, at the beginning of keeping out of the way duration generation model, the channel loading index, preset index avoidance according to what is pre-established
Duration is kept out of the way in initial value and preset index avoidance maximum value, generation；
S205 executes a Channel Detection every the duration of keeping out of the way, if detecting channel idle and back-off timer
When time is reduced to zero, the channel is just accessed；
S206 sends the coordinator for the electricity consumption data by the channel, so that the coordinator passes through mutually
Networking sends the electricity consumption data to the management server；
Wherein, the duration of keeping out of the way generates model, specifically:
Wherein, BT is to keep out of the way duration, and M indicates that channel is busy number, and N indicates that channel is idle number,Indicate net
Network load factor, PresetBE indicate that preset index avoidance initial value, MaxBE indicate preset index avoidance maximum value,
Timeslot is time slot.
In embodiments of the present invention, beneficial effect is three aspects, and details are as follows:
In a first aspect, channel loading index is to be positively correlated with duration is kept out of the way, duration is kept out of the way in the reduction of channel loading index
It reduces, when channel loading index increases, keeps out of the way duration and also increase, the technical effect that can be generated are as follows: the network for improving channel gulps down
The amount of spitting；
Second aspect, using preset Channel Detection mode, detects wireless sensor in the time interval randomly selected
The channel of network, obtains that channel is busy number and channel is idle number, be busy number and channel according to channel is empty
Not busy ratio generates channel loading index, due to being in the time interval randomly selected, the channel of each intelligent electric meter
Load factor is generally different, and the index avoidance of each intelligent electric meter is generally also different, and therefore, each intelligent electric meter chooses identical move back
The probability for keeping away duration is reduced, and therefore, can be advantageously reduced multiple intelligent electric meters while be sent electricity consumption data and electricity consumption data occurs
The case where collision；
The third aspect randomly selects index avoidance so that each intelligent electric meter to keep out of the way duration less same, therefore, can be into
One step advantageously reduce multiple intelligent electric meters and meanwhile send electricity consumption data and there is a situation where electricity consumption data is collided, to reduce each
Electricity consumption data interferes with each other, and then improves the efficiency of transmission of electricity consumption data.
Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can borrow
Help software that the mode of required common hardware is added to realize.The program can store in read/write memory medium, described
Storage medium, as random access memory, flash memory, read-only memory, programmable read only memory, electrically erasable programmable storage
Device, register etc..The storage medium is located at memory, and processor reads the information in memory, executes this hair in conjunction with its hardware
Method described in bright each embodiment.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of kilowatt meter reading-out system based on wireless sensor network, including management server, coordinator and multiple intelligent electric meters,
It is characterized in that, the intelligent electric meter is built-in with ZigBee module and the lithium battery for ZigBee module power supply, the intelligence
Ammeter accesses wireless sensor network by ZigBee module；
The intelligent electric meter obtains electricity consumption data；
The intelligent electric meter within a preset period of time, randomly selects time interval, in the time interval randomly selected, using pre-
If Channel Detection mode, detect the channel of wireless sensor network, obtain that channel is busy number and channel is idle time
Number；
It is idle ratio that the intelligent electric meter, which is busy number and channel according to channel, generates channel loading index；
The intelligent electric meter generates model, the channel loading index, preset keeps out of the way finger according to the duration of keeping out of the way pre-established
Duration is kept out of the way in number initial value and preset index avoidance maximum value, generation；
The intelligent electric meter executes a Channel Detection every the duration of keeping out of the way, if detecting channel idle and back-off timer
Time when being reduced to zero, just access the channel；
The intelligent electric meter sends the coordinator for the electricity consumption data by the channel；
After the coordinator receives the electricity consumption data, the management service to is sent the electricity consumption data by internet
Device；
Wherein, the duration of keeping out of the way generates model, specifically:
Wherein, BT is to keep out of the way duration, and M indicates that channel is busy number, and N indicates that channel is idle number,Indicate that network is negative
Index is carried, PresetBE indicates that preset index avoidance initial value, MaxBE indicate preset index avoidance maximum value,
Timeslot is time slot.
2. kilowatt meter reading-out system as described in claim 1, which is characterized in that the kilowatt meter reading-out system further include:
It is arranged in the intelligent electric meter, current location is positioned, the GPS module of GPS coordinate is generated.
3. kilowatt meter reading-out system as claimed in claim 2, which is characterized in that the ZigBee module is connected with the GPS module,
The ZigBee module is also used to through the coordinator, sends the GPS coordinate to management server.
4. kilowatt meter reading-out system as described in claim 1, which is characterized in that the kilowatt meter reading-out system further include:
It is arranged in the intelligent electric meter, current location is positioned, generates the Beidou positioning module of Beidou coordinate.
5. kilowatt meter reading-out system as claimed in claim 4, which is characterized in that the ZigBee module and the Beidou positioning module phase
Connection, the ZigBee module are also used to through the coordinator, send the Beidou coordinate to management server.
6. kilowatt meter reading-out system as described in claim 1, which is characterized in that the Channel Detection mode is carrier wave detection pattern.
7. kilowatt meter reading-out system as described in claim 1, which is characterized in that the Channel Detection mode is that energy threshold detects mould
Formula.
8. a kind of meter register method based on kilowatt meter reading-out system described in claim 1 is applied to the intelligent electric meter, which is characterized in that
Include:
Obtain electricity consumption data；
Within a preset period of time, time interval is randomly selected, in the time interval randomly selected, using preset Channel Detection
Mode detects the channel of wireless sensor network, and obtaining channel is the number that busy number and channel are the free time；
It is the ratio that busy number and channel are the free time according to channel, generates channel loading index；
According to pre-establish keep out of the way duration generate model, the channel loading index, preset index avoidance initial value and
Duration is kept out of the way in preset index avoidance maximum value, generation；
A Channel Detection is executed every the duration of keeping out of the way, the time of channel idle and back-off timer is reduced to if detecting
When zero, the channel is just accessed；
The coordinator is sent by the electricity consumption data by the channel, so that the coordinator will be described by internet
Electricity consumption data sends the management server to；
Wherein, the duration of keeping out of the way generates model, specifically:
Wherein, BT is to keep out of the way duration, and M indicates that channel is busy number, and N indicates that channel is idle number,Indicate network load
Index, PresetBE indicate that preset index avoidance initial value, MaxBE indicate preset index avoidance maximum value, Timeslot
For time slot.
9. according to the method described in claim 8, it is characterized in that, the electricity consumption data is sent by the channel described
To the coordinator, so that after the coordinator sends the electricity consumption data to the management server by internet,
The method also includes:
Detect whether the electricity consumption in the electricity consumption data reaches preset threshold, when the electricity consumption reaches preset threshold, i.e.,
When power off.
10. according to the method described in claim 8, it is characterized in that, the electricity consumption in the detection electricity consumption data is
It is no to reach preset threshold, when the electricity consumption reaches preset threshold, immediately after power-off, the method also includes:
Generate alarm signal.
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| CN112834020A (en) * | 2020-12-31 | 2021-05-25 | 重庆国际复合材料股份有限公司 | Low-power-consumption data acquisition system and method for tray |
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2018
- 2018-10-17 CN CN201811206060.3A patent/CN109064729A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111787279A (en) * | 2020-06-30 | 2020-10-16 | 深圳市北电仪表有限公司 | Low-power-consumption BLE cellular network remote real-time copying and controlling camera system |
| CN112834020A (en) * | 2020-12-31 | 2021-05-25 | 重庆国际复合材料股份有限公司 | Low-power-consumption data acquisition system and method for tray |
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