CN202049554U - Intelligent gas meter based on internet of things - Google Patents
Intelligent gas meter based on internet of things Download PDFInfo
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- CN202049554U CN202049554U CN2011200224998U CN201120022499U CN202049554U CN 202049554 U CN202049554 U CN 202049554U CN 2011200224998 U CN2011200224998 U CN 2011200224998U CN 201120022499 U CN201120022499 U CN 201120022499U CN 202049554 U CN202049554 U CN 202049554U
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Abstract
The utility model discloses an intelligent gas meter based on the internet of things, which belongs to an intelligent gas meter and comprises a mother meter, a CPU (central processing unit) control module and a data transmission module. The mother meter is provided with a gas source outlet and a gas source inlet, an electromechanical valve is mounted nearby the gas source inlet, the CPU control module is connected with the mother meter and transmits control signals to the mother meter, gas consumption standards can be regulated through the CPU control module, the CPU control module comprises an EEPROM (electrically erasable programmable read-only memory) data storage, the data transmission module is indirectly connected with the internet of things, and the data transmission module receives control signals from a remote computer management system and feeds back gas consumption information of the gas meter sent out by the CPU control module to the remote computer management system by the aid of connection of the internet of things and the remote computer management system. The intelligent gas meter based on the internet of things is suitable for use in gas using networks in all regions, thereby being wide in application range and easy in popularization.
Description
Technical field
The utility model relates to a kind of intelligent gas meter, a kind of Internet of Things intelligent gas of saying so more specifically.
Background technology
Present domestic energy prices are just in line with international standards, because international oil gas anxiety, cause price volalility frequent, need the instant combustion gas paying price of adjusting, therefore the metering gas table is had higher requirement, its purpose is to realize functions such as gas metering, control, charge and management, but the domestic gas meter, flow meter of being produced at present can be divided into two classes on way of paying: the one, and post-pay paystation re-uses, such as the IC-card gas meter, flow meter, the 2nd, use afterwards earlier and pay, such as common diaphragm gas meter etc.The gas meter, flow meter of above-mentioned two kinds of charging ways the former have the forward purchasing gas expense use up promptly stop the supple of gas or steam, the user must hold the characteristics that can recover air feed after IC-card is purchased gas again and finished corresponding air delivery function to the appointed place, but there are artificial unreliable factor in IC-card and gas meter, flow meter when carrying out exchanges data, with the gas gas price real-time defective of control of tool not, the gas price adjustment of for example meeting the combustion gas provider.The latter exists data to make a copy of, gas expense is collected difficulty, the combustion gas provider is using difficult the control for combustion gas user's combustion gas.The clearing form of IC-card gas meter, flow meter is to adopt tolerance (side) to settle accounts; Gas company is sold the combustion gas number formulary in advance; The user deposits gas meter, flow meter in buying the combustion gas number formulary, the drawback that this mode is brought is: when the combustion gas price adjustment, gas company can't be adjusted by new price the residue tolerance in the gas meter, flow meter, has hysteresis quality, this will cause the user can hoard combustion gas, causes damage to gas company.And traditional diaphragm gas meter base table is checked meter, and because of having checked meter from door to door a time period, can't readjust prices the same time; The price modification of IC-card table then has hysteresis quality, and the user purchases gas earlier and causes grain bin gas.And being unit with the volume, employed on the market at present control gas meter, flow meter far away carries out record, when in the long-range adjustment gas meter, flow meter during gas price, volume change can take place in the residue tolerance in the gas meter, flow meter, the user will occurring, to purchase the tolerance that tolerance and user can use inconsistent, make the volume metering mode contradiction occur, the dispute that may bring user and gas company simultaneously.
Also occurred successively on the market in addition panoramicly far copying gas meter, flow meter, far controlling gas meter, flow meter, but the gas meter, flow meter of these structures all is point-to-point transmission mode, be gas meter, flow meter by wired or wireless mode with the write by hand device of data transmission to the person of checking meter, perhaps be transferred to the sub-district concentrator.Because be that point-to-point transmission and wireless signal very easily are subjected to extraneous frequency and buildings disturbs, it is very undesirable to cause data to copy and accept rate.Therefore the gas meter, flow meter of existing structure all can not solve instant adjustment combustion gas price, in time feed back technical matters such as data and centralized management in the gas meter, flow meter that the combustion gas user uses.
The utility model content
The purpose of this utility model is to solve above-mentioned deficiency, and a kind of a kind of Internet of Things intelligent gas meter that passes based on Internet of Things is provided.
For solving above-mentioned technical matters, the utility model by the following technical solutions:
The utility model provides a kind of Internet of Things intelligent gas meter on the one hand, comprise base table, CPU control module and data transmission module, base table is provided with source of the gas delivery outlet and input port, source of the gas is equipped with electromechanical valve near the input port, the CPU control module is connected with base table, and transmit control signal to base table, by the gas consumption standard of the adjustable integral basis table of CPU control module, comprise the EEPROM data-carrier store in the described CPU control module; The indirect connector networking of described data transmission module, be connected with long-range computer management system by Internet of Things, data transmission module receives control signal that comes from the remote computation machine management system and the gas meter, flow meter gas information of sending to computer management system feedback CPU control module.
Further technical scheme is: described data transmission module comprises signal projector and signal receiver, signal receiver carries out exchanges data by data command bus and CPU control module, signal projector is connected with data concentrator by wireless or wired mode, data concentrator connects the internet by network communication protocol, with focus on come from gas meter, flow meter be sent to computer management system by the internet with the form of packet with the gaseity data; Computer management system is sent to data concentrator by the internet with data packet form with control signal, and data concentrator transfers to data transmission module on the gas meter, flow meter by wired or wireless transmission mode with the control signal that receives.
Also further technical scheme is: described data command bus is the RS485 bus; Described network communication protocol is tcp/ip communication agreement or UDP communication protocol.
Also further technical scheme is: described wireless transmission method is any one in the middle of infrared signal, photosignal, ultrasonic signal, microwave signal, the GPRS signal; Described wire transmission mode be Optical Fiber Transmission, power carrier, RS232 bus, RS485 bus, M-BUS meter bus, CAN bus any one.
Further technical scheme is: the packet that described data concentrator receives and sends is through CPU control module data encrypted bag, signal projector is packed signal when signal is launched, signal receiver unpacks and is converted to executable operational order by data command bus transfer deciphering to the CPU control module line operate of going forward side by side after receiving external signal.
Further technical scheme is again: described CPU control module also comprises the FLASH program storage, be used for storing the control program that the CPU control module is moved, by appointment to FLASH program storage internal program, gas meter, flow meter finish signal and receive work of treatment with feedback.
Also further technical scheme is: mainly comprise cpu controller in the described CPU control module, cpu controller respectively with counting tongue tube sample circuit, the electromechanical valve control circuit, button number circuit, the liquid crystal display circuit counting tongue tube sample circuit that is connected links to each other with counting tongue tube in the base table, the electromechanical valve control circuit links to each other with electromechanical valve and controls the open and close of electromechanical valve, liquid crystal display circuit links to each other with LCDs and controls the shown data of LCDs, button number circuit is connected with the EEPROM data-carrier store, and connection clip is counted circuit gas meter, flow meter is detained the number processing.
Compared with prior art, the beneficial effects of the utility model are: the application of Internet of Things on the gas meter, flow meter control system realized that each terminal device can control, each terminal device can be communicated by letter, making control end and gas meter terminal by Internet of Things access internet no longer merely is point-to-point control, realize the remote control management and price modification, the charge networking, form with the amount of money on the terminal gas meter, flow meter is settled accounts, avoided because of causing the user to store up gas to purchase the calculating of gas number formulary, and a kind of Internet of Things intelligent gas meter that the utility model provides and control system thereof are adapted at using in each regional combustion gas use network, applied range is easy to promote.
Description of drawings
Fig. 1 is a gas meter, flow meter structural principle block diagram among the utility model embodiment 1 and the embodiment 2;
Fig. 2 is that the Long-distance Control structure that realizes among the utility model embodiment 1 and the embodiment 2 connects block diagram;
Fig. 3 is the structured flowchart of the CPU control module among the utility model embodiment 1 and the embodiment 2;
Fig. 4 is the structured flowchart of gas meter, flow meter control system among the utility model embodiment 3;
Fig. 5 is the modular structure block diagram of computer management system among the utility model embodiment 3.
Embodiment
Below in conjunction with accompanying drawing the utility model is further elaborated.
Before setting forth each specific embodiment of the present utility model, at first an explanation done in a crucial noun " Internet of Things " of mentioning repeatedly in the utility model:
Internet of Things is by information sensing equipment such as radio-frequency (RF) identification, infrared inductor, GPS, laser scanners, agreement by agreement, gas meter, flow meter is connected with the internet as the use terminal, carry out message exchange and communicate by letter, to realize a kind of network of intelligent identification, location, tracking, monitoring and management.
Embodiment 1
As shown in Figure 1, a kind of Internet of Things intelligent gas meter that the utility model provides, a kind of installation embodiment of its technical scheme is: comprise base table, CPU control module and data transmission module, base table is provided with source of the gas delivery outlet and input port, source of the gas is equipped with electromechanical valve near the input port, and the CPU control module is connected with base table, and transmits control signal to base table, by the gas consumption standard of the adjustable integral basis table of CPU control module, comprise the EEPROM data-carrier store in the described CPU controller module; The indirect connector networking of described data transmission module, be connected with long-range computer management system by Internet of Things, data transmission module is used for receiving control signal that comes from the remote computation machine management system and the gas meter, flow meter gas information of sending to computer management system feedback CPU control module.Preferential setting is signal projector and two parts of signal receiver in the described data transmission module, and signal receiver carries out exchanges data by data command bus and CPU control module, and wherein the data command bus preferably adopts the RS485 bus.Signal projector is connected with data concentrator by wired mode, and data concentrator connects the internet by network communication protocol, and network communication protocol can adopt UDP communication protocol; With focus on come from gas meter, flow meter be sent to computer management system by the internet with the form of packet with the gaseity data; Computer management system is sent to data concentrator by the internet with data packet form with control signal, and data concentrator transfers to data transmission module on the gas meter, flow meter by wireless transmission mode with the control signal that receives.Wherein Wireless transmission mode is according to the different demands of field of employment, can in the middle of Optical Fiber Transmission, power carrier, RS232 bus, RS485 bus, M-BUS meter bus, CAN bus, select, but the ubiquity according to the demand of described field of employment and wire signal transmission at present preferably adopts Optical Fiber Transmission.
As shown in Figure 2, the packet that data concentrator receives and sends is a CPU control module data encrypted bag, signal projector is packed signal when signal is launched, signal receiver unpacks and is converted to executable operational order by data command bus transfer deciphering to the CPU control module line operate of going forward side by side after receiving external signal.The CPU control module also comprises the FLASH program storage, be used for storing the control program that the CPU control module is moved, by appointment to FLASH program storage internal program, gas meter, flow meter finish signal and receive work of treatment with feedback, and the instruction of supplementing with money that receives can be stored in the EPPROM data-carrier store, the EPPROM data-carrier store can also be stored identity code (ID), user's table number, user cipher, accumulated recharge amount, accumulative total remaining sum, accumulative total gas consumption, purchase information such as gas unit price, the warning amount of money, gas meter, flow meter duty.
As shown in Figure 3, mainly comprise cpu controller in the described CPU control module, cpu controller is connected with counting tongue tube sample circuit, electromechanical valve control circuit, button number circuit, liquid crystal display circuit respectively; Link to each other with counting tongue tube in the base table by counting tongue tube sample circuit, link to each other with electromechanical valve by the electromechanical valve control circuit and to control the open and close of electromechanical valve, link to each other with LCDs and control the shown data of LCDs by liquid crystal display circuit, button number circuit is connected with the EEPROM data-carrier store, and connection clip is counted circuit gas meter, flow meter is detained the number processing.
Embodiment 2
As shown in Figure 1, a kind of Internet of Things intelligent gas meter that the utility model provides, the another kind of embodiment of its technical scheme is: comprise base table, CPU control module and data transmission module, base table is provided with source of the gas delivery outlet and input port, source of the gas is equipped with electromechanical valve near the input port, and the CPU control module is connected with base table, and transmits control signal to base table, by the gas consumption standard of the adjustable integral basis table of CPU control module, comprise the EEPROM data-carrier store in the described CPU controller module; The indirect connector networking of described data transmission module, be connected with long-range computer management system by Internet of Things, data transmission module receives control signal that comes from the remote computation machine management system and the gas meter, flow meter gas information of sending to computer management system feedback CPU control module.Preferential setting is signal projector and two parts of signal receiver in the described data transmission module, and signal receiver carries out exchanges data by data command bus and CPU control module, and wherein the data command bus preferably adopts the RS485 bus.Signal projector is connected with data concentrator by wireless mode, and data concentrator connects the internet by network communication protocol, and network communication protocol preferably adopts the tcp/ip communication agreement; With focus on come from gas meter, flow meter be sent to computer management system by the internet with the form of packet with the gaseity data; Computer management system is sent to data concentrator by the internet with data packet form with control signal, and data concentrator transfers to data transmission module on the gas meter, flow meter by wireless transmission mode with the control signal that receives.Wherein Wireless transmission mode is according to the different demands of field of employment, can adopt in the middle of the infrared signal, photosignal, ultrasonic signal, microwave signal, GPRS signal any one, therefore the effect difference that different signal transmission forms can reach need be selected according to concrete field of employment and area.
As shown in Figure 2, the packet that data concentrator receives and sends is a CPU control module data encrypted bag, signal projector is packed signal when signal is launched, signal receiver unpacks and is converted to executable operational order by data command bus transfer deciphering to the CPU control module line operate of going forward side by side after receiving external signal.The CPU control module also comprises the FLASH program storage, be used for storing the control program that the CPU control module is moved, by appointment to FLASH program storage internal program, gas meter, flow meter finish signal and receive work of treatment with feedback, and the instruction of supplementing with money that receives can be stored in the EPPROM data-carrier store, the EPPROM data-carrier store can also be stored identity code (ID), user's table number, user cipher, accumulated recharge amount, accumulative total remaining sum, accumulative total gas consumption, purchase information such as gas unit price, the warning amount of money, gas meter, flow meter duty.
As shown in Figure 3, mainly comprise cpu controller in the described CPU control module, cpu controller is connected with counting tongue tube sample circuit, electromechanical valve control circuit, button number circuit, liquid crystal display circuit respectively; Link to each other with counting tongue tube in the base table by counting tongue tube sample circuit, link to each other with electromechanical valve by the electromechanical valve control circuit and to control the open and close of electromechanical valve, link to each other with LCDs and control the shown data of LCDs by liquid crystal display circuit, button number circuit is connected with the EEPROM data-carrier store, and connection clip is counted circuit gas meter, flow meter is detained the number processing.
Present embodiment is compared with embodiment 1, is the comparatively outstanding embodiment of the utility model.
Embodiment 3
As shown in Figure 4, a kind of control system that is used to control the described Internet of Things intelligent gas meter of claim 1 that the utility model also provides, described control system is made up of many Internet of Things intelligent gas meters and data concentrator, remote computation machine management system, the control system embodiment of being introduced in the present embodiment is comparatively simply control, therefore in The whole control system, only adopt a data concentrator, if use network in large-scale especially combustion gas, can adopt many data concentrators to be connected with each other, with the gas meter, flow meter constituent networking of using terminal.Wherein every Internet of Things intelligent gas meter is as a node in the control system, node be connected with data concentrator and with himself data transmission to data concentrator, after the data aggregation of data concentrator with a plurality of nodes, by the Internet of Things interface insert the internet with data transmission to computer management system, wherein the Internet of Things interface is according to the difference of field of employment, can be at the telephone wire dialing interface, the fiber broadband interface, select in the middle of adsl interface and the GPRS interface, but the interface ubiquity according to present access internet is analyzed, what be easier to realize is fiber broadband and adsl interface, and the technical scheme that therefore adopting above-mentioned two kinds of network interfaces to be beneficial to the utility model more provides is implemented.
As shown in Figure 5, be integrated with charging administration system and gas meter, flow meter working state administration system in the computer management system, wherein charging administration system comprises:
Basic data module: can be used for realizing admin site setting, the regional function that is provided with, shows type setting, the type of paying the fees setting, manufacturer's setting, keeper's setting, invoice format setting.Sell gas service management module: can be used for realizing that the combustion gas user opens an account, pays the fees, moves back the function of expense and tonifying Qi operation.
Financial statement administration module: can be used for realizing the pay the fees making of information report, combustion gas user amr message form and daily sheet, month form, year form of combustion gas user essential information form, combustion gas user.
Gas meter, flow meter working state administration system comprises:
District management module: can be used for realizing that admin site is set, the management sub-district is set, administrative unit is set, the function of administration office is set.
User management module: the function that can be used for being embodied as combustion gas user cancellation, transfer and modification combustion gas user essential information.
The user mode administration module: be used to realize the query function of historic state and immediate status, wherein historic state inquiry is that historical query is adjusted in pay the fees historical query, gas price of the historical query of remote switch valve, remote meter reading historical query, networking; Immediate status inquiry is report to the police inquiry, high-low pressure protection inquiry, super stream protection inquiry, overtime protection inquiry, strong magnetic protection inquiry, remaining sum inquiry, the inquiry of accumulative total usefulness gas, accumulated recharge amount inquiry, instant gas price inquiry of low tolerance.
Maintenance management module: can be used for realizing to remove the high-low pressure fault, remove super stream fault, remove overtime fault, remove the function of magnetic interference fault.
Change the table administration module: the function that can be used for realizing the information inquiry of record trouble table, the new table information of record, data conversion storage.
After the management system in the control system is provided with, signal receiver in the data transmission module of gas meter terminal is by after wired and wireless transmission method acquired signal and the order, a kind of situation is to adjust unique identity code (ID) in the EEPROM data-carrier store by the CPU control module, user's table number, user cipher, accumulated recharge amount, the accumulative total remaining sum, the accumulative total gas consumption, purchase the gas unit price, the warning amount of money, information such as gas meter, flow meter duty and with its encryption, by the signal projector in the data transmission module information is sent to the data encrypted packing on the internet according to set communication protocol, packet is forwarded to the gas company management system on the internet again.Another kind of situation is after CPU monitors unusual condition, and with information, as super flow, unusual conditions such as magnetic interference are encrypted, and the abnormal conditions packing after will encrypting by the signal projector in the data transmission module sends to management system.
Real-time gas price adjustment described in the utility model is achieved in that when the combustion gas provider need adjust in real time to gas price, the control signal that the signal receiver transmitter of use and management system in the data transmission module of gas meter terminal sends, by the RS485 bus encrypted instruction is passed to cpu controller in the CPU control module, cpu controller is decrypted the back connection clip with encrypted instruction and counts circuit control base table and carry out the gas price adjustment, after gas price is adjusted, upgrade the recharge amount that stores in the EPPROM data-carrier store simultaneously, button number circuit is detained number according to new gas price standard.
The back payment function that uses earlier described in the utility model is achieved in that after the combustion gas user uses combustion gas, it uses data and record to be stored in the EEPROM data-carrier store, when the user pays the combustion gas working costs to the combustion gas provider, the combustion gas provider transfers information in the EEPROM data-carrier store by control module, can realize using the function of afterwards charging earlier, and data in real time is accurate.Signal receiver in the data transmission module of gas meter terminal will unpack by the packet that the internet sends from coming from computer management system, and the data after will unpacking are sent to after cpu controller is decrypted by the RS485 bus, further cpu controller is paid the fees information storage to the EEPROM data-carrier store with the combustion gas user, realized supplementing with money of gas meter, flow meter, also can realize with the real-time inquiry of gas information, remote lives such as the real-time adjustment control of gas price simultaneously by same mode.
The data that the Internet of Things intelligent gas meter transmits on Internet of Things and internet need be handled through encryption and decryption, and its key can be set up on their own by gas company, can change at any time, and be updated in the gas meter terminal.After key is adjusted, computer management system can send the order of a packing security key change to gas meter terminal, signal receiver in the data transmission module unpacks it and is reduced into the instruction of exercisable security key change and imports cpu controller into and handle, and realizes gas meter, flow meter key updating function;
After Internet of Things intelligent gas meter that has adopted the utility model to provide and control system thereof, can realize network management between each outlet of combustion gas provider, by the internet user resources are shared, subscriber payment need not be paid the fees to the fixed location again, it is more convenient quick to pay the fees, and can realize that computer management system calls gas meter, flow meter information and manage and gas meter terminal combustion gas operating position is fed back to management system, thereby understand the function of the concrete operating position of terminal.
Protection domain of the present utility model not only limits to and the foregoing description; it more than is preferred embodiment of the present utility model; be not limited to the utility model itself; any equivalence that gas meter terminal in a kind of Internet of Things intelligent gas meter of the present utility model and the control system thereof and each component models in the control system are made is replaced, is revised, deletion, all within the scope that the utility model is protected.
Claims (5)
1. Internet of Things intelligent gas meter, comprise base table, CPU control module and data transmission module, base table is provided with source of the gas delivery outlet and input port, source of the gas is equipped with electromechanical valve near the input port, the CPU control module is connected with base table, and transmit control signal to base table, the gas consumption standard by the adjustable integral basis table of CPU control module is characterized in that: comprise the EEPROM data-carrier store in the described CPU control module; The indirect connector networking of described data transmission module mainly comprises cpu controller in the described CPU control module, and cpu controller is connected with counting tongue tube sample circuit, electromechanical valve control circuit, button number circuit, liquid crystal display circuit respectively; Counting tongue tube sample circuit links to each other with counting tongue tube in the base table, and the electromechanical valve control circuit links to each other with electromechanical valve, and liquid crystal display circuit links to each other with LCDs, detains the number circuit and is connected with the EEPROM data-carrier store.
2. Internet of Things intelligent gas meter according to claim 1, it is characterized in that: described data transmission module comprises signal projector and signal receiver, signal receiver is connected with the CPU control module by the data command bus, signal projector is connected with data concentrator by wireless or wired mode, and data concentrator connects the internet by network communication protocol.
3. Internet of Things intelligent gas meter according to claim 2 is characterized in that: described data command bus is the RS485 bus; Described network communication protocol is tcp/ip communication agreement or UDP communication protocol.
4. Internet of Things intelligent gas meter according to claim 2 is characterized in that: described wireless transmission method is any one in the middle of infrared signal, photosignal, ultrasonic signal, microwave signal, the GPRS signal; Described wire transmission mode be Optical Fiber Transmission, power carrier, RS232 bus, RS485 bus, M-BUS meter bus, CAN bus any one.
5. Internet of Things intelligent gas meter according to claim 1 is characterized in that: described CPU control module also comprises the FLASH program storage.
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| CN2011200224998U CN202049554U (en) | 2011-01-25 | 2011-01-25 | Intelligent gas meter based on internet of things |
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| CN2011200224998U CN202049554U (en) | 2011-01-25 | 2011-01-25 | Intelligent gas meter based on internet of things |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102063764A (en) * | 2011-01-25 | 2011-05-18 | 邵泽华 | Intelligent gas meter of Internet of things and control system thereof |
| CN104217500A (en) * | 2013-06-04 | 2014-12-17 | 大庆英辰创新科技有限公司 | Gas metering method and system and intelligent gas meter |
| CN105491105A (en) * | 2015-11-18 | 2016-04-13 | 成都秦川科技发展有限公司 | Intelligent water meter system with tiered pricing function |
| CN106781046A (en) * | 2016-12-21 | 2017-05-31 | 杨启梁 | Internet of things gas meter |
| CN109975738A (en) * | 2019-03-21 | 2019-07-05 | 深圳市敏泰智能科技有限公司 | A kind of electric water meter calibration method and calibrating installation |
-
2011
- 2011-01-25 CN CN2011200224998U patent/CN202049554U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102063764A (en) * | 2011-01-25 | 2011-05-18 | 邵泽华 | Intelligent gas meter of Internet of things and control system thereof |
| WO2012100686A1 (en) * | 2011-01-25 | 2012-08-02 | Shao Zehua | Internet of things intelligent gas meter and control system thereof |
| CN104217500A (en) * | 2013-06-04 | 2014-12-17 | 大庆英辰创新科技有限公司 | Gas metering method and system and intelligent gas meter |
| CN105491105A (en) * | 2015-11-18 | 2016-04-13 | 成都秦川科技发展有限公司 | Intelligent water meter system with tiered pricing function |
| CN105491105B (en) * | 2015-11-18 | 2019-04-02 | 成都秦川物联网科技股份有限公司 | Intelligent water meter system with ladder valuation functions |
| CN106781046A (en) * | 2016-12-21 | 2017-05-31 | 杨启梁 | Internet of things gas meter |
| CN106781046B (en) * | 2016-12-21 | 2019-02-22 | 杨启梁 | Internet of Things gas meter |
| CN109975738A (en) * | 2019-03-21 | 2019-07-05 | 深圳市敏泰智能科技有限公司 | A kind of electric water meter calibration method and calibrating installation |
| CN109975738B (en) * | 2019-03-21 | 2021-02-05 | 深圳市敏泰智能科技有限公司 | Electronic water meter calibration method and calibration device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170823 Address after: 610000 Longquanyi, Sichuan Province Industrial Park licensing Patentee after: Chengdu Qinchuan networking Polytron Technologies Inc Address before: 610100 No. 10 Xingye Road, Chengdu Industrial Zone, Longquanyi District, Sichuan, China Patentee before: Shao Zehua |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111123 |
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| CX01 | Expiry of patent term |