CN207782851U - A kind of secure communication device and system of gas meter, flow meter - Google Patents
A kind of secure communication device and system of gas meter, flow meter Download PDFInfo
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- CN207782851U CN207782851U CN201820229110.9U CN201820229110U CN207782851U CN 207782851 U CN207782851 U CN 207782851U CN 201820229110 U CN201820229110 U CN 201820229110U CN 207782851 U CN207782851 U CN 207782851U
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Abstract
The utility model discloses a kind of secure communication devices of gas meter, flow meter, are related to gas meter, flow meter field, are applied to gas meter, flow meter（A）, including：The gas meter, flow meter（A）, including：First controller（1）And safety chip（3）；First controller（1）With the safety chip（3）Connection, the safety chip（3）With telecommunication circuit（B）Second controller（2）Connection；The safety chip（3）, it is used for first controller（1）It is sent to the second controller（2）The first ciphertext data deciphering at clear data and to the second controller（2）Feedback combustion gas table status and implementing result are encrypted to the second ciphertext data；Wherein, the gas meter, flow meter（A）With the telecommunication circuit（B）For separate structure.And safe communication system.It can solve the problems, such as that gas meter, flow meter life cycle is asynchronous with channel lifecycle and the control unit of gas meter, flow meter can suffer from external attack.
Description
Technical field
The utility model is related to gas meter, flow meter field, the secure communication device and system of specifically a kind of gas meter, flow meter.
Background technology
During gas enterprise operation management, the combustion gas use of user is counted using the gas meter, flow meter with transporting function
Gauge takes, and can be provided to the user by transporting function and easily be supplemented with money, meter reading service, reduces operation personnel and visits meter reading
Trouble.But traditional transporting function gas meter, flow meter MCU1 is directly connected with channel, when channel module because of failure, copy and accept rate, cost
Etc. reasons when needing replacing, can only together be replaced together with gas meter, flow meter, cause the serious waste of human and material resources.
Without safety certification or using ESAM modules in existing gas meter, flow meter product（Embedded safe control module）To complete
Safety certification before gas meter, flow meter MCU1 is communicated with channel service, carries out authentication first, i.e. gas meter, flow meter MCU1 receives channel
After identification authentication data, identification authentication data is sent to ESAM, ESAM handles identification authentication data, and ESAM is by certification
As a result gas meter, flow meter MCU1 is returned to, gas meter, flow meter MCU1 is according to the ESAM results returned to determine whether the body of accept channel order
Part, and continue to execute the order that channel is sent.But gas meter, flow meter MCU1 is directly connected with channel so that gas meter, flow meter MCU1 may
It is attacked by self-channel is carried out, to the authentication link around ESAM, causes gas meter, flow meter MCU1 to execute illegal order, very
It is valve-embedded etc. to switching.
Invention content
In view of this, the utility model provides a kind of secure communication device and system of gas meter, flow meter, to solve gas meter, flow meter life
The life the problem of period is asynchronous with channel lifecycle and the control unit of gas meter, flow meter can suffer from external attack.
In a first aspect, the utility model provides a kind of secure communication device of gas meter, flow meter, it is applied to gas meter, flow meter, including：
The gas meter, flow meter, including：First controller and safety chip；
First controller is connect with the safety chip, and the second controller of the safety chip and telecommunication circuit connects
It connects；
The safety chip, the first ciphertext data solution for first controller to be sent to the second controller
It is close to be encrypted to the second ciphertext data at clear data and to second controller feedback combustion gas table status and implementing result；
Wherein, the gas meter, flow meter and the telecommunication circuit are separate structure.
Second aspect, the utility model provide a kind of secure communication device of gas meter, flow meter, are applied to telecommunication circuit, feature
It is, including：
The telecommunication circuit, including：Second controller；
First controller of the gas meter, flow meter is connect with the safety chip of the gas meter, flow meter, the safety chip and described the
Two controllers connect；
The second controller, for the first ciphertext data to be sent or transmitted to the safety chip；
The safety chip, combustion gas table status and implementing result for sending first controller are encrypted into
Second ciphertext data；
The second controller is additionally operable to read or transmit the second ciphertext data；
Wherein, the gas meter, flow meter and the telecommunication circuit are separate structure.
Preferably, the second controller is connect with first controller by safety chip control signal wire；
The second controller and first controller, read according to the low and high level of the safety chip control signal wire
Take the safety chip.
Preferably, the telecommunication circuit and the gas meter, flow meter grafting.
Preferably, the safety chip, including：First memory and second memory；
The first memory, for storing the first ciphertext data and the second ciphertext data；
The second memory, for store after the first ciphertext data deciphering at clear data and the combustion gas
Table status and implementing result.
The third aspect, the utility model provide a kind of safe communication system of gas meter, flow meter, including：
Such as above-mentioned apparatus, and
Main website；
The gas meter, flow meter is connect with the telecommunication circuit, and telecommunication circuit is connect with main website；
The main website, for sending the first ciphertext data and decryption the second ciphertext data.
Preferably, the main website, including：Enquiry circuit；
The enquiry circuit, the identification information-enquiry for decrypting the second ciphertext data, which whether there is, carries the mark
Know information and needs the first ciphertext data sent.
The utility model at least has the advantages that：
The utility model provides a kind of secure communication device and system of gas meter, flow meter, and gas meter, flow meter is separated with telecommunication circuit,
The first ciphertext data that telecommunication circuit is sent to the first controller of gas meter, flow meter need to first pass through safety chip decryption, then the first control
Device can just read the bright data after decryption, and the combustion gas table status and implementing result that second controller is sent also need to first pass through safety
Chip encryption is at the second ciphertext data.It can solve that gas meter, flow meter life cycle is asynchronous with channel lifecycle and the control of gas meter, flow meter
Unit can suffer from the problem of external attack.
Description of the drawings
By the description below with reference to attached drawing to the utility model embodiment, the above-mentioned and other mesh of the utility model
, feature and advantage it is apparent, in the accompanying drawings：
Fig. 1 is a kind of functional block diagram of the secure communication device and system of gas meter, flow meter of the utility model embodiment；
Fig. 2 is a kind of safety chip storage unit subregion of the secure communication device of gas meter, flow meter of the utility model embodiment
Figure.
Specific implementation mode
The utility model is described below based on embodiment, but it is worth noting that, the utility model is simultaneously unlimited
In these embodiments.It is detailed to describe some specific detail sections below in the datail description of the utility model.So
And for the part of no detailed description, those skilled in the art can also understand the utility model completely.
In addition, it should be understood by one skilled in the art that the attached drawing that is provided is simply to illustrate that the utility model
Objects, features and advantages, attached drawing are not to be actually drawn to scale.
Meanwhile unless the context clearly requires otherwise, "include", "comprise" etc. otherwise throughout the specification and claims
Similar word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, being " including but not limited to "
Meaning.
Fig. 1 is a kind of functional block diagram of the secure communication device and system of gas meter, flow meter of the utility model embodiment.Such as Fig. 1
Shown, a kind of secure communication device of gas meter, flow meter is applied to gas meter, flow meter A, gas meter, flow meter A, including：First controller 1 and safe core
Piece 3；First controller 1 is connect with safety chip 3, and safety chip 3 is connect with the second controller 2 of telecommunication circuit B；Safety chip
The first ciphertext data that telecommunication circuit B is transmitted are decrypted and are converted into clear data by 3；First controller 1 actively reads and holds
Row clear data, and feed back combustion gas table status and implementing result to safety chip 3；Safety chip 3 is by combustion gas table status and execution
As a result the second ciphertext data are encrypted to.Telecommunication circuit B and gas meter, flow meter A is separated, telecommunication circuit B can with gas meter, flow meter A grafting, or
Person is wirelessly connected either telecommunication circuit B and gas meter, flow meter A with gas meter, flow meter A and uses radio frequency or near field（NFC）Mode led to
News, therefore when replacement telecommunication circuit B（Such as, operator no longer supports 2G to service, and causes telecommunication circuit B that cannot be further continued for using）No
It needs to replace entire gas meter, flow meter A, it is only necessary to replace telecommunication circuit B.
The telecommunication circuit B of the utility model is the prior art, and different communication electricity can be selected according to different communication modes
Road, such as：Radio frequency or near field（NFC）Or communication.
As shown in Figure 1, a kind of secure communication device of gas meter, flow meter, is applied to telecommunication circuit B, including：Telecommunication circuit B, packet
It includes：Second controller 2；The first controller 1 of gas meter, flow meter A is connect with the safety chip 3 of gas meter, flow meter A, and safety chip 3 and second is controlled
Device 2 processed connects；Telecommunication circuit B sends to safety chip 3 or transmits the first ciphertext data；Safety chip 3, by the first control
The combustion gas table status and implementing result that device 1 is sent are encrypted and are converted into the second ciphertext data；Telecommunication circuit B, actively read or
Person transmits the second ciphertext data.
Wherein, for the utility model embodiment, MCU1 may be selected in the first controller 1, and second controller 2 may be selected
MCU2, MCU (Micro Control Unit) Chinese is micro-control unit, also known as one chip microcomputer (Single
Chip Microcomputer) or microcontroller.
Specifically, safety chip 3 is exactly TPM (TruSTed Platform Module), trusted console module is
One can independently carry out key generation, encryption and decryption device, inside possesses independent processor and storage unit, can store key
And characteristic, such as：Infineon, STMicw Electronics（ST）, Atmel, winbond electronics（Purchase National Semiconductor）Deng
The safety chip of company's production, the utility model patent is not limited the type of safety chip 3 or even the utility model can
To substitute safety chip 3 using security server.
From the foregoing, it will be observed that safety chip 3 is the prior art, a kind of functional chip that can complete encryption and decryption.
In Fig. 1, a kind of safe communication system of gas meter, flow meter, including：Main website C, gas meter, flow meter A are connect with telecommunication circuit B, are led to
Letter circuit B is connect with main website C by channel；Main website C actively reads the second ciphertext data or actively sends the first ciphertext data
When, second controller 2 obtains operating right；Main website C, including：Enquiry circuit；When main website C actively reads the second ciphertext data, look into
It askes circuit and whether there is the first ciphertext number sent with identification information needs according to the identification information-enquiry of the second ciphertext data
According to；If in the presence of the first ciphertext data are sent to safety chip 3 by telecommunication circuit B；If being not present, the second control of setting
Device 2 is idle state or release operating right.
In the present invention, enquiry circuit is available circuit, such as：Application No. is 201320113356.7 China is practical
Electric appliance practicality status inquiry circuit in a kind of power eonsumption controller Fig. 1 for wireless intelligent house of new patent.
Because main website C or telecommunication circuit B are connect with several gas meter, flow meters, each gas meter, flow meter A has the mark of oneself
Information, either telecommunication circuit B issues or sends the first ciphertext data according to identification information to corresponding gas meter, flow meter to main website C.
Specifically, safety chip 3 adds one after combustion gas table status and implementing result are encrypted to the second ciphertext data
Per se with identification information, identification information indicates some specific gas meter, flow meter for identification information or combustion gas table status and implementing result,
Main website C or telecommunication circuit B can send the first ciphertext data according to some specific gas meter, flow meter of identification information pair；The safety of gas meter, flow meter
Chip 3 is decrypted the first ciphertext data with identification information and is converted into clear data；The first controller 1 of gas meter, flow meter A
According to identification information-enquiry specific some gas meter, flow meter consistent with identification information, controls some specific gas meter, flow meter and complete specific move
Make, such as main website control valve, power supply power protection, power supply power supply protection, abnormal flow cut-out, anti-reverse, tamper inversion-prevention, tolerance court
Limit protection and IC card attack protection etc.（That is, the first ciphertext data）.
In the present invention, combustion gas table status and implementing result, including：Power supply power supply is under-voltage, the event of power supply power supply, valve
Barrier, Clock battery is under-voltage, magnetic disturbance, abnormal flow, metering processing unit exception, surplus is low, overdraw is used up, reduce unsuccessfully,
Button valve opening, billing scheme expire.
In Fig. 1, for the utility model embodiment, main website C can be terminal device, for example, usually mobile phone or computer
Either network high in the clouds or server or client etc..
In Fig. 1, second controller 2 is connect with the first controller 1 by safety chip control signal wire；Second controller 2
With the first controller 1, according to the low and high level safe operation chip 3 of safety chip control signal wire.If specifically, the first control
Device 1 processed is just in safe operation chip 3, then to safety chip control signal wire transmission low level signal, second controls the first controller 1
After device 2 processed collects low level signal, 2 inoperable safety chip 3 of second controller；If the first controller 1 completes operation peace
Full chip 3, then for the first controller 1 to safety chip control signal wire transmission high level signal, it is electric that second controller 2 collects height
After ordinary mail number, 2 operable safety chip 3 of second controller, second controller 2 is low to the transmission of safety chip control signal wire at this time
Level signal, after the first controller 1 collects low level signal, 1 inoperable safety chip 3 of the first controller.
Fig. 2 is a kind of safety chip storage unit subregion of the secure communication device of gas meter, flow meter of the utility model embodiment
Figure.As shown in Fig. 2, safety chip 3, including：First buffer zone 301（First memory）With the second buffer zone 302（Second
Memory）.
In fig. 1 and 2, the first buffer zone 301（First memory）For storing safety chip 3 by telecommunication circuit B
First ciphertext data of transmission, which are decrypted, is converted into clear data and the first controller 1 actively reads and executes plaintext number
According to rear, combustion gas table status and implementing result are fed back to safety chip 3.
In fig. 1 and 2, the second buffer zone 302（Second memory）First for storing telecommunication circuit B transmission is close
Be converted into is encrypted in combustion gas table status and implementing result that first controller 1 is sent by literary data and safety chip 3
Two ciphertext data.
Embodiment described above is only to express the embodiment of the utility model, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the utility model patent range therefore be interpreted as.It should be pointed out that the ordinary skill people of this field
For member, without departing from the concept of the premise utility, several deformations, same replacement can also be made, improved etc., these
Belong to the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (7)
1. a kind of secure communication device of gas meter, flow meter is applied to gas meter, flow meter（A）, which is characterized in that including：
The gas meter, flow meter（A）, including：First controller（1）And safety chip（3）；
First controller（1）With the safety chip（3）Connection, the safety chip（3）With telecommunication circuit（B）Second
Controller（2）Connection；
The safety chip（3）, it is used for first controller（1）It is sent to the second controller（2）The first ciphertext
Data deciphering is at clear data and to the second controller（2）It is close that feedback combustion gas table status and implementing result are encrypted to second
Literary data；
Wherein, the gas meter, flow meter（A）With the telecommunication circuit（B）For separate structure.
2. a kind of secure communication device of gas meter, flow meter is applied to telecommunication circuit（B）, which is characterized in that including：
The telecommunication circuit（B）, including：Second controller（2）；
The gas meter, flow meter（A）The first controller（1）With the gas meter, flow meter（A）Safety chip（3）Connection, the safety chip
（3）With the second controller（2）Connection；
The second controller（2）, it is used for the safety chip（3）Send or transmit the first ciphertext data；
The safety chip（3）, it is used for first controller（1）The combustion gas table status and implementing result of transmission are encrypted to
Two ciphertext data；
The second controller（2）, it is additionally operable to read or transmit the second ciphertext data；
Wherein, the gas meter, flow meter（A）With the telecommunication circuit（B）For separate structure.
3. device according to claim 1 or claim 2, it is characterised in that：
The second controller（2）With first controller（1）It is connected by safety chip control signal wire；
The second controller（2）With first controller（1）, according to the low and high level of the safety chip control signal wire
Operate the safety chip（3）.
4. device according to claim 1 or claim 2, it is characterised in that：
The telecommunication circuit（B）With the gas meter, flow meter（A）Grafting.
5. according to any one of claim 1~2 described device, it is characterised in that：
The safety chip（3）, including：First memory and second memory；
The first memory, for storing the first ciphertext data and the second ciphertext data；
The second memory, for store after the first ciphertext data deciphering at clear data and the combustion gas table-like
State and implementing result.
6. a kind of safe communication system of gas meter, flow meter, which is characterized in that including：
Such as any one of Claims 1 to 5 described device, and
Main website（C）；
The gas meter, flow meter（A）With the telecommunication circuit（B）Connection, telecommunication circuit（B）With main website（C）Connection；
The main website（C）, for sending the first ciphertext data and decryption the second ciphertext data.
7. system according to claim 6, it is characterised in that：
The main website（C）, including：Enquiry circuit；
The enquiry circuit, the identification information-enquiry for decrypting the second ciphertext data whether there is to be believed with the mark
Breath needs the first ciphertext data sent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820229110.9U CN207782851U (en) | 2018-02-09 | 2018-02-09 | A kind of secure communication device and system of gas meter, flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820229110.9U CN207782851U (en) | 2018-02-09 | 2018-02-09 | A kind of secure communication device and system of gas meter, flow meter |
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| Publication Number | Publication Date |
|---|---|
| CN207782851U true CN207782851U (en) | 2018-08-28 |
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ID=63210156
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820229110.9U Active CN207782851U (en) | 2018-02-09 | 2018-02-09 | A kind of secure communication device and system of gas meter, flow meter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110740035A (en) * | 2019-10-21 | 2020-01-31 | 浙江正泰仪器仪表有限责任公司 | encryption system and encryption method for intelligent meter |
| CN112437087A (en) * | 2020-11-24 | 2021-03-02 | 重庆市山城燃气设备有限公司 | Encryption and decryption method and system for gas meter with safety chip and gas meter system |
| CN114244511A (en) * | 2021-12-22 | 2022-03-25 | 杭州万高科技股份有限公司 | Encryption and decryption module and meter reading system suitable for DLMS/COSEM communication protocol |
-
2018
- 2018-02-09 CN CN201820229110.9U patent/CN207782851U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110740035A (en) * | 2019-10-21 | 2020-01-31 | 浙江正泰仪器仪表有限责任公司 | encryption system and encryption method for intelligent meter |
| CN112437087A (en) * | 2020-11-24 | 2021-03-02 | 重庆市山城燃气设备有限公司 | Encryption and decryption method and system for gas meter with safety chip and gas meter system |
| CN114244511A (en) * | 2021-12-22 | 2022-03-25 | 杭州万高科技股份有限公司 | Encryption and decryption module and meter reading system suitable for DLMS/COSEM communication protocol |
| CN114244511B (en) * | 2021-12-22 | 2023-06-09 | 杭州万高科技股份有限公司 | Encryption and decryption module and meter reading system suitable for DLMS/COSEM communication protocol |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200921 Address after: Room 612, area D, building 20, No. 1-42, Lane 83, Hongxiang North Road, Lingang New Area, Pudong New Area, Shanghai Patentee after: Shanghai Yingchen Information Technology Co.,Ltd. Address before: 163316 Heilongjiang Daqing High-tech Zone Service Outsourcing Industrial Park D-2 block 310, 311, 312, 318 room. Patentee before: DAQING ENCH INNOVATIVE TECHNOLOGIES Co.,Ltd. |
|
| TR01 | Transfer of patent right |