CN202488724U

CN202488724U - Environmental monitoring sensor

Info

Publication number: CN202488724U
Application number: CN2011205723653U
Authority: CN
Inventors: 王佐明; 王雄康
Original assignee: SHANGHAI HUASHEN TAIGE SOFTWARE CO Ltd
Current assignee: SHANGHAI HUASHEN TAIGE SOFTWARE CO Ltd
Priority date: 2011-12-31
Filing date: 2011-12-31
Publication date: 2012-10-10
Anticipated expiration: 2021-12-31

Abstract

The utility model discloses an environmental monitoring sensor, at least comprising an MCU (microprogrammed control unit), a sensing module, a wireless signal transceiver, a secure computing module and a circuit board, wherein the MCU is used for controlling and scheduling all the components in the sensor and is in charge of scheduling related operation of each component and processing and recording networking route data; the sensing module is connected with the MCU and comprises multiple sensors to sense various geological information and quantize the geological information into detailed data; the wireless signal transceiver is connected with the MCU and is used for transmitting monitoring data monitored by the sensing module by constructing a wireless ad hoc network; the secure computing module is connected with the MCU and is used for encrypting and decrypting all the communication signals to protect network security; and the circuit board is connected all the components of the sensor. With the adoption of the environmental monitoring sensor disclosed by the utility model, the phenomenon that an unauthorized third part sensor enters into a wireless sensor network established by the utility model can be completely eradicated, and safety protection ability of the wireless sensor network is improved.

Description

Environment monitoring sensor

Technical field

The utility model relates to a kind of environment monitoring sensor, particularly relates to a kind of environment monitoring sensor with higher-security, belongs to technical field of wireless.

Background technology

Natural geologic hazard all is the bad dream on the human civilization history all the time; Yet how it effectively being controlled but is one of the human technical barrier that can't capture so far; Therefore research is undoubtedly unique can directly reducing the loss from present's view to the monitoring and the early warning technology of natural calamity, and a most probable important process being able to carry out fast.

Very fortunately, last century the nineties, the mankind have successfully created wireless sensor network; How this technological birth is to helping to solve in infrastructure condition very severe even untraversed region; Effectively the problem of monitoring of environmental variation has been made huge contribution, and this is because wireless senser can not rely on other ground infrastructure, through co-operating mode; Perception information is gathered and transmitted to the self-construction communication network.

Yet nonetheless, if will carry out large-scale geology monitoring, the cost input also is very huge.Because this need drop into and dispose a large amount of transducers in the monitoring area, and because the powerup issue of transducer self, the operating time of sensing network can not surpass the several months usually, need all reclaim and redeploy these transducers when the time comes, and maintenance cost is high; On the other hand, also because the geology Monitoring Data belongs to national important strategic data asset information, therefore, the fail safe of monitoring achievement must obtain reliable guarantee.

But at present traditional wireless senser is not being considered any communication security factor in the cooperation communication each other, all will be admitted and the networking communication as long as meet the transducer of communication frequency, and communication data is to transmit each other with clear-text way all.That is to say; Unwarranted non-monitoring side needs only the third party's transducer that drops into the minute quantity same frequency in the monitored area; Among the wireless sensor network that is fused to monitoring side easily that just can be passive; Thereby, realize obtaining indirectly the purpose of whole network monitoring data through participating in the mode of monitoring side's network information transmission work.

In sum, can know that prior art is used for traditional sensors to reckon without any communication security factor when monitoring of environmental changes and the problem that has the security protection scarce capacity, be necessary to propose improved technological means therefore in fact, solve this problem.

The utility model content

For overcoming the deficiency that above-mentioned prior art exists; One of the utility model purpose is to provide a kind of environment monitoring sensor; It is through increasing the design of security module chip; Can thoroughly stop uncommitted third party's transducer and get into the wireless sensor network of setting up by the utility model, improve the security protection ability of wireless sensor network.

For reaching above-mentioned and other purpose, the utility model provides a kind of environment monitoring sensor, comprises at least:

MCU controls and dispatches all components and parts in this transducer, is responsible for the related work of each components and parts of scheduling and handles and write down the networking route data;

Inductive module is connected in this MCU, and it comprises a plurality of induction installations, with the various geological informations of perception and be quantified as concrete data;

Wireless signal transceiver is connected in this MCU, and this wireless signal transceiver transmits the Monitoring Data that this inductive module monitors through making up wireless ad hoc network;

Safe computing module links to each other with this MCU, and all communication signals are carried out encryption and decryption with protecting network safety; And

Circuit board connects all components and parts of this transducer.

Further, this safe computing module adopts the encrypting module of the close algorithm of built-in state.

Further, this safe computing module before mutual cooperation networking and transmission information each other with all signal encryptions after, see off through this wireless signal transceiver again; Analyze use with offering this MCU behind all decrypted signals again after receiving signal.

Further, this inductive module comprises temperature sensing device, humidity induction device, vibration inductive device, pressure sensitive device, magnetic-inductive device and radiation-responsive apparatus.

Further, this wireless signal transceiver adopts the Zigbee chip that possesses the location algorithm storehouse.

Further, this MCU is programmable low-power scm.

Further, this transducer adopts and intends the shape design.

Compared with prior art, a kind of environment monitoring sensor of the utility model carries the design of the safe computing module chip of AES through increase, has improved the security protection ability of the wireless sensor network of being set up by the utility model; Because this safe compute chip carries AES; Key is kept at chip internal; Have no interface to read, can only participate in computing or be modified satisfying under the safety condition, and all encryption and decryption computings all will be accomplished in chip; Therefore can thoroughly stop uncommitted third party's transducer and get into the wireless sensor network of setting up by the utility model, guarantee the fail safe of Monitoring Data.

Description of drawings

Fig. 1 is the module rack composition of a kind of environment monitoring sensor of the utility model;

Fig. 2 is the workflow diagram of a kind of environment monitoring sensor of the utility model.

Embodiment

Below through the execution mode of specific instantiation and accompanying drawings the utility model, those skilled in the art can be understood other advantage and the effect of the utility model easily by the content that this specification disclosed.The utility model also can be implemented or use through other different instantiation, and each item details in this specification also can be carried out various modifications and change based on different viewpoints and application under the spirit that does not deviate from the utility model.

Fig. 1 is the module rack composition of a kind of environment monitoring sensor of the utility model.As shown in Figure 1, a kind of environment monitoring sensor of the utility model comprises at least: MCU10, inductive module 11, wireless signal transceiver 12, safe computing module 13 and circuit board 14.

Wherein MCU10 is the control appliance in the utility model; Be used for controlling and dispatching all components and parts of transducer; Be responsible for related work and the processing and the record networking route data of each components and parts of scheduling, in the utility model preferred embodiment, adopt programmable low-power scm as MCU; Inductive module 11 is connected in MCU10; It comprises a plurality of induction installations; Be used for the various geological informations of perception and be quantified as concrete data; In the utility model preferred embodiment, inductive module 11 can comprise like induction installations such as temperature sense, humidity inductive, Vibration induction, pressure sensitive, magnetic induction, radioinductions, in order to geological informations such as the temperature in the environment, humidity, vibrations, pressure, magnetosensitive sense and radiation and be quantified as concrete data; Wireless signal transceiver 12 is a communication apparatus; Be connected in MCU10, it is used to make up wireless ad hoc network, transmits the Monitoring Data that inductive module 11 is monitored; Be after inductive module 11 is responsible for gathering various geological environment data; Make up wireless ad hoc network, location relative position and transmit these Monitoring Data through wireless signal transceiver 12, in the utility model preferred embodiment, can adopt the Zigbee chip that possesses the location algorithm storehouse as wireless signal transceiver; Safe computing module 13 links to each other with MCU10; It is used for all communication signals of encryption and decryption; With protecting network safety, that is to say, after the utility model all can utilize safe computing module 13 with all signal encryptions before cooperate each other networking and mutual transmission information; See off through wireless signal transceiver 12 again; Receive simultaneously to analyze again after also all can utilizing safe computing module 13 with all decrypted signals behind the signal and use that in the utility model preferred embodiment, the encrypting module that can adopt the close algorithm of built-in state is as safe computing module 13; 14 of circuit boards are used to connect all components and parts of transducer.

The operation principle of the environment monitoring sensor of the utility model is similar with conventional wireless sensor; Promptly be responsible for gathering various geological environment data with the induction installation (like temperature sense, humidity inductive, Vibration induction, pressure sensitive, magnetic induction, radioinduction etc.) that utilizes various abilities; Make up wireless ad hoc network, location relative position and transmit these Monitoring Data through wireless signal transceiver 12 then, MCU10 is responsible for dispatching the related work of each components and parts and handles and record networking route data.With the traditional sensors difference do, the security module that the environment monitoring sensor of the utility model all can utilization itself before mutual cooperation networking and transmission information each other with all signal encryptions after, see off through wireless signal transceiver again; Simultaneously, receive to analyze again after also all can utilizing security module with all decrypted signals behind the signal and use.

What this need explain be; The utility model has adopted the design of plan shape to the outward appearance of product; Specially the shape of product casing and color are made into natural form (as: stone, soil block, snowball, withered branch etc.), reach the purpose that reduces the eco-environmental impact degree with this.

Fig. 2 is the workflow diagram of the environment monitoring sensor of the utility model.Below will further explain through the concrete workflow of the utility model how the utility model is realized:

Step 1: beginning.

Step 2: seek the neighbors transducer.

Step 3: judge whether to find? If find, then execution in step 4, otherwise, execution in step 2.

Step 4: send the challenge authentication handshake.

Step 5: judge whether authentication success? If authentication success, then execution in step 6, otherwise, execution in step 15.

Step 6: the communication routing iinformation of preserving neighbors.

Step 7: the geological environment data of obtaining this node.

Step 8: the activity of inspection neighbors.

Step 9: judge whether and can also get in touch? If can also get in touch, then execution in step 10, otherwise execution in step 2.

Step 10: the encryption communication data that receive neighbors.

Step 11: deciphering obtains the environmental data original text of neighbors.

Step 12: the geological environment data that merge this node and neighbors.

Step 13: encrypt the packet after merging, transmit to other neighborss.

Step 14.: execution in step 7.

Step 15: the ID of this neighbors is piped off

Step 16: execution in step 2.

It is thus clear that the environment monitoring sensor of the utility model has continued the operation principle of traditional sensors, consider the networking security and the signal and communication safety problem of radio sensing network simultaneously; Increased the design of safe computing module chip; This safe compute chip carries AES, and key is kept at chip internal, has no interface to read; Can only participate in computing or be modified satisfying under the safety condition; And all encryption and decryption computings all will be accomplished in chip, therefore can thoroughly stop uncommitted third party's transducer and get into the wireless sensor network of being set up by the utility model, more need not carry and spy upon any Monitoring Data.

The foregoing description is the principle and the effect thereof of illustrative the utility model only, but not is used to limit the utility model.Any those skilled in the art all can be under the spirit and category of the utility model, and the foregoing description is modified and changed.Therefore, the rights protection scope of the utility model should be listed like claims.

Claims

1. environment monitoring sensor comprises at least:

Circuit board connects all components and parts of this transducer.

2. environment monitoring sensor as claimed in claim 1 is characterized in that: this inductive module comprises temperature sensing device, humidity induction device, vibration inductive device, pressure sensitive device, magnetic-inductive device and radiation-responsive apparatus.

3. environment monitoring sensor as claimed in claim 1 is characterized in that: this MCU is programmable low-power scm.

4. environment monitoring sensor as claimed in claim 1 is characterized in that: this transducer adopts intends the shape design.