CN103457786A - Sensor access detection method, device and system - Google Patents
Sensor access detection method, device and system Download PDFInfo
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- CN103457786A CN103457786A CN2012101840500A CN201210184050A CN103457786A CN 103457786 A CN103457786 A CN 103457786A CN 2012101840500 A CN2012101840500 A CN 2012101840500A CN 201210184050 A CN201210184050 A CN 201210184050A CN 103457786 A CN103457786 A CN 103457786A
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Abstract
The embodiment of the invention provides a sensor access detection method, device and system to solve the problems that in the prior art, when a terminal sends query requests to detect whether sensor access exits or not in a timed mode, the instantaneity of sensor access detection is hard to guarantee, the quantity of electricity consumed in the detection is large and the system is large in resource occupation. According to the method, a sensor can initiatively send a connection request to the terminal according to a sensor communication protocol, the terminal judges whether the sensor access is successful or not according to the received connection request, and therefore the problems that when the terminal is used for detecting whether the sensor access exists or not, the instantaneity of the sensor access detection is hard to guarantee due to the overlong timed time, and the quantity of the electricity consumed in detection is large and the system is large in resource occupation due to the too short timed time can be solved.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of transducer access detection method, device and system.
Background technology
In the prior art, when carrying out transducer access detection, terminal can initiatively be passed through each interface and send query message, if receive correct replying, can define the transducer access.General, terminal can regularly send query message by each interface, detects whether the transducer access is arranged, and can detect by the mode of each interface of automatic regular polling whether the transducer access is arranged.
For example, as shown in Figure 1, when carrying out transducer access detection, for each interface, terminal can send query message, if receiving transducer responds, judgement has transducer access, if do not receive that transducer responds, and can time delay a period of time, continue to send query message, detect whether the transducer access is arranged.
Current terminal automatic regular polling interface detects the scheme whether the transducer access is arranged, and need to carry out the setting of timing length.The timing length arranged is long, makes terminal the transducer of access can not be detected in time, and what cause the transducer access to detect is ageing poor.If, and the timing length arranged is too short, can cause terminal to carry out continually poll, higher to the power consumption of terminal, and can take more system resource, cause the waste of system resource.For example, suppose that terminal has 10 interfaces, at set intervals just must be by 10 interface polls one time.If poll is frequent, what can cause terminal power expends the waste with system resource in a large number.
Summary of the invention
The embodiment of the present invention provides a kind of transducer access detection method, device and system, for the real-time that guarantees that the transducer access detects, and reduces and detects electric weight and the system resource expended.
A kind of transducer access detection method, described method comprises:
The connection request that terminal sends according to the sensor communication protocol receiving sensor;
Terminal, according to the described connection request received, determines that described transducer accesses successfully.
A kind of transducer access detection method, described method comprises:
Transducer is determined and self has been carried out reset operation;
Transducer sends described connection request according to sensor communication protocol to terminal, and indicating terminal determines that according to described connection request transducer accesses successfully.
A kind of transducer access testing system, described system comprises transducer and terminal, wherein:
Described transducer, self carried out reset operation for determining, according to sensor communication protocol, to terminal, sends described connection request;
Described terminal, the connection request sent for receiving described transducer, and, according to the described connection request received, determine that described transducer accesses successfully.
A kind of transducer access checkout gear, described device comprises:
Receiving element, for the connection request sent according to the sensor communication protocol receiving sensor;
Detecting unit, for the described connection request according to receiving, determine that described transducer accesses successfully.
A kind of transducer access checkout gear, described device comprises:
Determining unit, carried out reset operation for determining transducer;
Transmitting element, for according to sensor communication protocol, to terminal, sending described connection request, indicating terminal determines that according to described connection request transducer accesses successfully.
The scheme provided according to the embodiment of the present invention, survey whether there is the transducer access for terminal timed sending inquiry request in prior art, the real-time that the transducer access existed detects is difficult to be guaranteed, electric weight height and system resource that detection expends take many problems, the present invention proposes, can initiatively by sensor communication protocol, to terminal, send connection request by transducer, terminal judges that by the connection request received transducer accesses successfully, thereby avoid surveying whether there be transducer when access by terminal, the real-time that the long meeting of timing causes the transducer access to detect is difficult to be guaranteed, the too short meeting of timing causes detecting the electric weight height and the system resource that expend and takies many problems.
The accompanying drawing explanation
The schematic diagram that the transducer access that Fig. 1 provides for prior art detects;
The flow chart of steps of the transducer access detection method that Fig. 2 provides for the embodiment of the present invention one;
The frame structure schematic diagram that Fig. 3 provides for the embodiment of the present invention one;
The transducer that Fig. 4 provides for the embodiment of the present invention two accesses the structural representation of checkout gear;
The flow chart of steps of the transducer access detection method that Fig. 5 provides for the embodiment of the present invention three;
The transducer that Fig. 6 provides for the embodiment of the present invention four accesses the structural representation of checkout gear;
The flow chart of steps of the transducer access detection method that Fig. 7 provides for the embodiment of the present invention five;
The structural representation of the transducer access testing system that Fig. 8 provides for the embodiment of the present invention six.
Embodiment
For in prior art, by terminal timed sending inquiry request, surveying whether there is the transducer access, the timing length existed is difficult to definite problem, the embodiment of the present invention proposes initiatively by sensor communication protocol, to terminal, to send connection request by transducer, make end side to determine and to have the transducer access according to the connection request received, solve in prior art and carrying out when the transducer access detects the ageing poor and higher problem of power consumption existed.
Below in conjunction with Figure of description and each embodiment, the present invention program is described.
Embodiment mono-,
The embodiment of the present invention one provides a kind of transducer access detection method, and in the present embodiment, before the transducer access detects, transducer and terminal need to be set up physical connection.Can be understood as the specified interface that transducer is inserted to terminal.And can be detected by the reset operation trigger sensor access of transducer in the present embodiment.Concrete, transducer resets after resetting and can being not limited to power on, and can be also resetting in other situations, can be interpreted as that transducer, when starting first and restarting at every turn, all can detect in the trigger sensor access.The steps flow chart of the method can as shown in Figure 2, comprise:
The connection request that step 101, terminal receiving sensor send.
In the present embodiment, the reset operation trigger sensor of transducer sends the operation of connection request to terminal.In this step, transducer can send connection request to described terminal by sensor communication protocol, and there is the transducer access in notification terminal.
In sensor communication protocol, defined one with the irrelevant frame structure of bottom communication, and specific definition the structure of protocol Data Unit (PDU) data field in this frame structure, this frame structure can be as shown in Figure 3.This frame structure can comprise guidance code field, version number field (its value representation protocol version.For example, its intermediate value is 0 reservation, wouldn't use, value is 1 presentation protocol version number 1.0, value is 2 presentation protocol version numbers 1.1, value is 10 presentation protocol version numbers 1.9, value is 11 presentation protocol version numbers 2.0), sensor address field (sensor address in this field can use sensor identification (ID) to mean), PDU length field (the length of the value representation PDU data of this field, this value can be 0), (value representation of this field is for the content of described frame structure for the first checksum field, adopt verification that the first algorithm determines and), the PDU data field is (when the value of PDU length field is 0, this field can not exist) and the second checksum field (value representation of this field is for the content of described frame structure, adopt verification that the second algorithm determines and, and when the value of PDU length field is 0, this field can not exist).PDU data field wherein further comprises function code field and performance data unit (FDU) data field.
Can utilize in the present embodiment frame structure as shown in Figure 3 to realize communicating by letter between terminal and transducer.And in the frame structure that the present embodiment adopts, length and the span of each field can be as shown in table 1.Length and the span of each field that the PDU data field of this frame structure further comprises can be as shown in table 2.
Table 1
| Field | Length (byte) | Span |
| Function code | 2 | The function code of definition |
| The FDU data | Variable | 0~65533 |
Table 2
Concrete, in this step, transducer can utilize frame structure as shown in Figure 3 to mean connection request, and can by the function code field value, be the first appointment numerical value, as the frame structure of 0xF101 is defined as connection request.When frame structure means connection request, the FDU data field can be sky.
The legitimacy of step 102, the described connection request of terminal verification.
This step is preferred steps.Terminal can, when receiving the connection request of transducer transmission, directly perform step 103.And preferably, terminal can be after the connection request of confirming to receive through this step be legal, then perform step 103, certainly, if the connection request that terminal check receives is illegal, can process ends.
If in step 101, transducer utilization frame structure as shown in Figure 3 sends connection request, in this step, and can be by the first verification with the second verification with determine the legitimacy of connection request:
Concrete, the verification that in the frame structure of the expression connection request that can receive in verification, the first checksum field is carried and, and utilize the first algorithm, the numerical value of determining according to the content of this frame structure received is consistent;
And/or the verification that in the frame structure of the expression connection request that receives of verification, the second checksum field is carried and, and utilize the second algorithm, when the numerical value of determining according to the content of this frame structure received is consistent, determine that the connection request received is legal.
Step 103, terminal determine that transducer accesses successfully.
In this step, terminal can be when receiving the connection request of transducer transmission, directly determine that transducer accesses successfully, thereby completing the transducer access detects, can be also after the legitimacy verification to connection request is passed through, determine that transducer accesses successfully, make while in the communication process of transducer and terminal, data transmission fault having occurred, can be by the legitimacy verification to connection request, guarantee to only have the transducer that sends legal connection request successfully to access terminal, improve the accuracy that the transducer access detects.
Step 104, terminal send the result to transducer and receive request.
Further, after terminal determines that transducer accesses successfully, terminal can also notify described transducer to access described terminal success to described sensor feedback information, can carry out follow-up data communication.
In the present embodiment, communicating by letter between terminal and transducer all can, according to sensor communication protocol, be realized as utilized frame structure as shown in Figure 3.Therefore, in this step, terminal also can utilize frame structure as shown in Figure 3 to mean that the result receives request, and can be the 4th to specify numerical value by the function code field value, as the frame structure of 0xF104 is defined as the result, receives request.When frame structure means that the result receives request, can utilize the FDU data field to carry and mean that transducer accesses successful information.
Certainly, transducer is after receiving the result reception request, can be as terminal receives connection request, the result that verification receives receives the legitimacy of request, and can, when verification determines that the result reception request received is legal, receive the request judgement according to the result received and whether successfully access terminal.Make while in the communication process of transducer and terminal, data transmission fault having occurred, can be by the result being received to the legitimacy verification of request, guarantee that transducer can receive request according to legal the result and judge whether successfully to access terminal, improve the sensor side accuracy that access detects to transducer.
When utilizing frame structure to mean that the result receives request, the method for calibration that method of calibration and terminal receive the connection request that utilizes frame structure to mean is similar, concrete, can comprise:
Expression the result that verification receives receive verification that in the frame structure of request, the first checksum field is carried and, and utilize the first algorithm, the numerical value of determining according to the content of this frame structure received is consistent; And/or the expression the result that receives of verification receive verification that in the frame structure of request, the second checksum field is carried and, and utilize the second algorithm, the numerical value of determining according to the content of this frame structure received is consistent.
Further, after step 101, before step 103, the present embodiment can further include following steps, to realize terminal reading and validity judgement attribute sensor information, assurance only has legal transducer just can access terminal, further to improve the accuracy that access detects to transducer:
Step 101 ', terminal sends the reading attributes request to described transducer.
In this step, terminal can send the reading attributes request to described transducer according to sensor communication protocol, the attribute information of described transducer is read in described reading attributes request for request, thereby can further judge the legitimacy of described transducer according to the attribute information of described transducer, and, according to the validity judgement result to described transducer, determine whether to allow described transducer access.Terminal also can utilize frame structure as shown in Figure 3 to mean the reading attributes request, and can by the function code field value, be the second appointment numerical value, as the frame structure of 0xF102 is defined as the reading attributes request.When frame structure means the reading attributes request, the FDU data field can be sky.
Step 101 ", the attribute that sends of terminal receiving sensor receives request.
Transducer, after the reading attributes request that receives the terminal transmission, can send attribute to described terminal according to sensor communication protocol and receive request, and described attribute carry the attribute information of described transducer in receiving and asking.
Transducer also can utilize frame structure as shown in Figure 3 to mean that attribute receives request, and can be the 3rd to specify numerical value by the function code field value, as the frame structure of 0xF103 is defined as attribute, receives request.When frame structure means that attribute receives request, the FDU data field can carry the attribute information of described transducer.Concrete, the attribute information of described transducer can mean by the TLV mode, the type that T is attribute information (can be 2 bytes, type can comprise base attribute and extended attribute), the length that L is attribute information (can be 2 bytes), the value that V is attribute information (can be L byte).When wherein the type of attribute information is base attribute, the value of attribute information can mean the relevant informations such as probe quantity (port number) of sensor name, product ID, manufacturer's title and integrated sensor.When wherein the type of attribute information is extended attribute, the value of attribute information can mean channel number, tunnel name, passage range and unit.
Preferably, transducer is after receiving the reading attributes request, also can be as terminal receives connection request, the legitimacy of the reading attributes request that verification receives, and can, when verification determines that the reading attributes request received is legal, send attribute according to the reading attributes request received to terminal and receive request.Make while in the communication process of transducer and terminal, data transmission fault having occurred, can be by the legitimacy verification to the reading attributes request, guarantee that transducer can, according to legal reading attributes request to the terminal feedback attribute information, improve the accuracy that the transducer access detects.
When utilizing frame structure to mean the reading attributes request, the method for calibration that method of calibration and terminal receive the connection request that utilizes frame structure to mean is similar, concrete, can comprise:
The verification that in the frame structure of the expression reading attributes request that verification receives, the first checksum field is carried and, and utilize the first algorithm, the numerical value of determining according to the content of this frame structure received is consistent; And/or the verification that in the frame structure of the expression reading attributes request that receives of verification, the second checksum field is carried and, and utilize the second algorithm, the numerical value of determining according to the content of this frame structure received is consistent.
Carrying out step 101 ' ~ step 101 " time, step 103 can specifically comprise:
The legitimacy of the described attribute information of verification, and, when definite described attribute information is legal, determines that described transducer is legal transducer, and access successfully.
In this step, the attribute that terminal can verification receives receives the legitimacy of the attribute information carried in request.Concrete, terminal can compare the attribute information and self the pre-configured attribute information that receive, and can, when determining that the attribute information receive belongs to self pre-configured attribute information, determine that the attribute information received is legal, otherwise determine that the attribute information received is illegal.
Preferably, terminal is after receiving attribute reception request, also can be as terminal receives connection request, the attribute that verification receives receives the legitimacy of request, and can, when verification determines that the attribute reception request received is legal, receive the legitimacy of request verification attribute information according to the attribute received.Make while in the communication process of transducer and terminal, data transmission fault having occurred, can be by attribute being received to the legitimacy verification of request, guarantee that terminal can receive the legitimacy of request judgement transducer according to legal attribute, improve the accuracy that the transducer access detects.
When utilizing frame structure to mean that attribute receives request, the method for calibration that method of calibration and terminal receive the connection request that utilizes frame structure to mean is similar, concrete, can comprise:
Expression attribute that verification receives receive verification that in the frame structure of request, the first checksum field is carried and, and utilize the first algorithm, the numerical value of determining according to the content of this frame structure received is consistent; And/or the expression attribute that receives of verification receive verification that in the frame structure of request, the second checksum field is carried and, and utilize the second algorithm, the numerical value of determining according to the content of this frame structure received is consistent.
Carrying out step 101 ' ~ step 101 " time, the result sent in step 104 receives in request, can carry the legitimacy check results for described attribute information.Concrete, when the information that the FDU data field carries means that the legitimacy check results of described attribute information is legal, can mean that transducer accesses successfully, otherwise, the transducer access failure meaned.Be that transducer can be determined the described terminal success of access or failure according to the legitimacy check results of described attribute information, concrete, in the time of can being legal in the legitimacy check results of definite described attribute information, determine the described terminal success of access, otherwise, determine the described terminal failure of access.
Terminal sends the result to transducer and receives request, and the notice transducer after step 104, can also further utilize terminal to realize the management of Internet of Things operation management platform to described transducer after accessing terminal successfully.Concrete, terminal sends the registration request of this transducer to Internet of Things operation management platform, and the operation management platform is preserved the log-on message of transducer and is returned to successfully log-on message to terminal, completes the register flow path of transducer.Further, the operation management platform sends sensor information collection request (as the presence of transducer etc.) to terminal.Terminal sends the information gathering request to transducer after receiving the request of operation management platform.Transducer sends to terminal by state information etc.Terminal is transmitted to the operation management platform by the relevant information of transducer, realizes the telemanagement of operation management platform to transducer.
Based on same inventive concept, provide following device, method and system with the embodiment of the present invention one.
Embodiment bis-,
The embodiment of the present invention two provides a kind of transducer access checkout gear, and this device can be integrated in terminal, and the structure of this device can as shown in Figure 4, comprise:
The connection request of receiving element 11 for sending according to the sensor communication protocol receiving sensor; Detecting unit 12, for the described connection request according to receiving, determines that described transducer accesses successfully.
This device can also comprise transmitting element 13:
Transmitting element 13 is for according to sensor communication protocol, to described transducer, sending the reading attributes request, and the attribute information of described transducer is read in described reading attributes request for request;
The attribute reception request that receiving element 11 also sends according to sensor communication protocol for receiving described transducer, described attribute receives the attribute information that carries described transducer in request;
The legitimacy of the described attribute information that detecting unit 12 receives specifically for verification receiving element 11, and, when definite described attribute information is legal, determines that described transducer is legal transducer, and access successfully.
This device can also comprise notification unit 14:
This device can also comprise verification unit 15:
The verification that frame structure first checksum field of the expression connection request that verification unit 15 receives for verification is carried and, and utilize the first algorithm, the numerical value of determining according to the content of this frame structure received is consistent; And/or the verification that in the frame structure of the expression connection request that receives of verification, the second checksum field is carried and, and utilize the second algorithm, the numerical value of determining according to the content of this frame structure received is consistent.
Expression attribute that verification unit 15 can also receive for verification receive verification that frame structure first checksum field of request carries and, and utilize the first algorithm, the numerical value of determining according to the content of this frame structure received is consistent; And/or the expression attribute that receives of verification receive verification that in the frame structure of request, the second checksum field is carried and, and utilize the second algorithm, the numerical value of determining according to the content of this frame structure received is consistent.
The device provided based on the embodiment of the present invention two, carry out in end side the process that the transducer access detects by tri-couples of embodiment and describe.
Embodiment tri-,
The embodiment of the present invention three provides a kind of transducer access detection method, is applied to end side, and terminal can comprise central processing unit (CPU), interface chip and power supply.Wherein can be understood as the function of detecting unit and verification unit in the device that embodiment bis-provides is realized by CPU, the function of the unit that other and transducer communicate (comprising receiving element, transmitting element, notification unit) realizes by interface chip, and terminal utilizes interface chip to realize and the communicating by letter of transducer.The steps flow chart of the method can as shown in Figure 5, comprise:
Step 201, CPU determine that interface chip produces interruption.
In the present embodiment, interface chip is when receiving the data of transducer transmission, and these data can be connection request, can be also that attribute receives request, produces hardware interrupts, thereby triggers the corresponding operation of CPU execution.
Step 202, CPU carry out the data processing.
In this step, the data that CPU can receive according to interface chip, process accordingly, concrete, if communicate according to the frame structure shown in Fig. 3 in embodiment mono-between transducer and terminal, in this step, the implication that CPU can mean according to predefined function code, the type of message that frame structure is meaned is identified, thereby is further processed.For example, can be the first specified format according to the function code in the frame structure received, determine that the data that receive are connection request.And for example, can be the 3rd specified format according to the function code in the frame structure received, determine that the data that receive are that attribute receives request, can further receive to attribute the attribute information carried in request and carry out the legitimacy verification.
Further, CPU can send data to transducer by the trigger interface chip.As received connection request determining, thereby after determining that transducer accesses successfully, the trigger interface chip sends the result to transducer and receives request, the notice transducer accesses terminal successfully, perhaps after determining and receiving connection request, the trigger interface chip sends the reading attributes request to transducer, in order to further the legitimacy of transducer is verified, thereby judges that whether the transducer access is successful.And for example, can determine that receive attribute receives request, and, after the legitimate verification that attribute receives the attribute information carried in request is passed through, determine that transducer accesses successfully, the trigger interface chip sends the result to transducer and receives request, and the notice transducer accesses terminal successfully.
Whether step 203, CPU judgement access detect and complete.
In this step, CPU can, according to predefined transducer access testing process, judge whether transducer access detection completes.For example, can pre-define at interface chip after transducer transmission the result receives request, access has detected.And can when access has detected, continue the interruption of wait interface chip judging interface chip not yet to transducer transmission the result reception request, otherwise, can process ends.
After step 201, before step 202, can further include step 202 ':
Step 202 ', CPU carries out the legitimacy verification.
Before the data that CPU docking port chip receives are processed, the data that can also the docking port chip receive are carried out the legitimacy verification.And, when the legitimacy verification is passed through, carry out the data processing.Otherwise, can again wait for the interruption of interface chip.
If communicate according to the frame structure shown in Fig. 3 in embodiment mono-between transducer and terminal, in this step, the verification that in the frame structure can verification received, the first checksum field is carried and, with utilize the first algorithm, whether the numerical value of determining according to the content of this frame structure received is consistent, and can the first checksum field value with utilize the first algorithm, when the numerical value of determining according to the content of this frame structure received is consistent, determine that the legitimacy verification passes through.
Perhaps, the verification that in the frame structure also can verification received, the second checksum field is carried and, with utilize the second algorithm, whether the numerical value of determining according to the content of this frame structure received is consistent, and can and utilize the second algorithm in the second checksum field value, when the numerical value of determining according to the content of this frame structure received is consistent, determine that the legitimacy verification passes through.
Embodiment tetra-,
The embodiment of the present invention four provides a kind of transducer access checkout gear, and this device can be integrated in transducer, and the structure of this device can as shown in Figure 6, comprise:
Determining unit 21 has been carried out reset operation for determining transducer; Transmitting element 22 is for according to sensor communication protocol, to terminal, sending described connection request, and indicating terminal determines that according to described connection request transducer accesses successfully.
Described device can also comprise receiving element 23:
The reading attributes request that receiving element 23 sends for receive described terminal according to sensor communication protocol, described reading attributes request is for asking the attribute information of read sensor;
Transmitting element 22 also receives request for according to sensor communication protocol, to described terminal, sending attribute, and described attribute receives the attribute information that carries transducer in request;
The result reception request that receiving element 23 also sends for receive described terminal according to sensor communication protocol, described the result receives in request and carries the legitimacy check results for described attribute information, and, according to the legitimacy check results of described attribute information, determine the described terminal success of access or failure.
Described device can also comprise verification unit 24:
The verification that frame structure first checksum field of the expression reading attributes request that verification unit 24 receives for verification is carried and, and utilize the first algorithm, the numerical value of determining according to the content of this frame structure received is consistent; And/or the verification that in the frame structure of the expression reading attributes request that receives of verification, the second checksum field is carried and, and utilize the second algorithm, the numerical value of determining according to the content of this frame structure received is consistent.
Expression the result that verification unit 24 can also receive for verification receive verification that frame structure first checksum field of request carries and, and utilize the first algorithm, the numerical value of determining according to the content of this frame structure received is consistent; And/or the expression the result that receives of verification receive verification that in the frame structure of request, the second checksum field is carried and, and utilize the second algorithm, the numerical value of determining according to the content of this frame structure received is consistent.
The device provided based on the embodiment of the present invention four, carry out in sensor side the process that the transducer access detects by five couples of embodiment and describe.
Embodiment five,
The embodiment of the present invention five provides a kind of transducer access detection method, and the steps flow chart of the method can as shown in Figure 7, comprise:
Step 301, transducer electrification reset.
In the present embodiment, after setting up physical connection with transducer and terminal, trigger the access detection while starting first and describe for example.
Step 302, transducer send connection request.
In this step, the data that transducer sends to terminal can be connection request, and the notification terminal transducer is accessed.
Step 303, transducer receive data.
In the present embodiment, after transducer sends data to terminal, the data that also can receiving terminal send, these data can be the reading attributes request, can be also that the result receives request.In following step, transducer Receipt Validation result receives request and describes for example.
Preferably, in this step, can set timing length, and can arrive at timing length, while not receiving yet the terminal response, determine and access terminal unsuccessfully, and can when the first delay duration arrives, again to terminal, send connection request, initiate access to terminal.For example, can be after to terminal, sending connection request, in setting duration T1, the result that does not receive the terminal transmission receives while asking, can can take and set the initial time that duration T1 due in is the T2 duration at delay duration T2() while arriving, again to terminal, send connection request.
Step 304, transducer carry out the legitimacy verification to the data that receive.
In this step, transducer can carry out the legitimacy verification to the data that receive.And, when the legitimacy verification is passed through, carry out the data processing.Otherwise, can think and access terminal unsuccessfully, resend connection request.
Certainly, when needs resend connection request, can when the second delay duration of setting arrives, again to terminal, send connection request, to terminal, initiate access.
Step 305, transducer are processed the data that receive.
Concrete, if communicate according to the frame structure shown in Fig. 3 in embodiment mono-between transducer and terminal, the implication that can mean according to predefined function code, process accordingly.
For example, according to the function code in the frame structure received, it is the 4th specified format, determine that the data that receive are that the result receives request, can receive request according to the result received, the information of carrying by identification FDU field, determine and whether successfully self access terminal, and process ends.
Embodiment six,
The embodiment of the present invention six provides a kind of transducer access testing system, and the structure of this system can comprise transducer 31 and terminal 32 as shown in Figure 8, wherein:
Described transducer 31 self has been carried out reset operation for determining, according to sensor communication protocol, to terminal, sends described connection request; The connection request that described terminal 32 sends for receiving described transducer, and, according to the described connection request received, determine that described transducer accesses successfully.
Described terminal 32 is also for sending the reading attributes request according to sensor communication protocol to described transducer, the attribute information of described transducer is read in described reading attributes request for request, receive the attribute reception request that described transducer sends, described attribute receives the attribute information that carries described transducer in request, and specifically for the legitimacy of the described attribute information of verification, and, when definite described attribute information is legal, determines that described transducer is legal transducer, and access successfully;
The reading attributes request that described transducer 31 also sends for receiving terminal, and send attribute reception request according to sensor communication protocol to described terminal.
Described terminal 32 also receives request for according to sensor communication protocol, to described transducer, sending the result, and described the result receives in request and carries the legitimacy check results for described attribute information;
Described transducer 31 also receives request for receiving described the result, according to the legitimacy check results of described attribute information, determines the described terminal success of access or failure.
In native system terminal and sensor communication process, the reading attributes request, the result receives request, and connection request and attribute receive request and adopt unified frame structure;
Described frame structure comprises guidance code field, version number field, sensor address field, protocol Data Unit PDU length field, the first checksum field, protocol Data Unit data field and the second checksum field; Described protocol Data Unit data field comprises function code field and performance data unit F DU data field;
Wherein, the first checksum field is carried the content for described frame structure, adopt verification that the first algorithm determines and; The second checksum field is carried the content for described frame structure, adopt verification that the second algorithm determines and.
And, utilizing unified frame structure to mean the reading attributes request, the result receives request, and when connection request and attribute receive request, the frame structure that can utilize described function code field to carry the first appointment numerical value means connection request; The frame structure that utilizes described function code field to carry the second appointment numerical value means the reading attributes request; Utilize described function code field to carry the 3rd and specify the frame structure of numerical value to mean that attribute receives request, and the performance data unit F DU data field content of described frame structure is attribute information; Utilizing described function code field to carry the 4th specifies the frame structure of numerical value to mean that the result receives request.
Those skilled in the art should understand, the application's embodiment can be provided as method, system or computer program.Therefore, the application can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect fully.And the application can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code one or more.
The application describes with reference to flow chart and/or the block diagram of method, equipment (system) and computer program according to the embodiment of the present application.Should understand can be in computer program instructions realization flow figure and/or block diagram each flow process and/or the flow process in square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce for realizing the device in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction be stored in this computer-readable memory produce the manufacture that comprises command device, this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make and carry out the sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out on computer or other programmable devices is provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the application's preferred embodiment, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the application's scope.
Obviously, those skilled in the art can carry out various changes and modification and the spirit and scope that do not break away from the application to the application.Like this, if within these of the application are revised and modification belongs to the scope of the application's claim and equivalent technologies thereof, the application also is intended to comprise these changes and modification interior.
Claims (29)
1. a transducer access detection method, is characterized in that, described method comprises:
The connection request that terminal sends according to the sensor communication protocol receiving sensor;
Terminal, according to the described connection request received, determines that described transducer accesses successfully.
2. the method for claim 1, is characterized in that, after the connection request that terminal sends according to the sensor communication protocol receiving sensor, terminal is according to the described connection request received, and before determining that described transducer accesses successfully, described method also comprises:
Terminal sends the reading attributes request according to sensor communication protocol to described transducer, and the attribute information of described transducer is read in described reading attributes request for request;
Terminal receives according to sensor communication protocol the attribute reception request that described transducer sends, and described attribute receives the attribute information that carries described transducer in request;
Terminal, according to the described connection request received, determines that described transducer accesses successfully, specifically comprises:
The legitimacy of the described attribute information of terminal verification, and, when definite described attribute information is legal, determines that described transducer is legal transducer, and access successfully.
3. method as claimed in claim 2, is characterized in that, terminal is according to the described connection request received, and after determining that described transducer accesses successfully, described method also comprises:
Terminal sends the result according to sensor communication protocol to described transducer and receives request, and described the result receives in request and carries the legitimacy check results for described attribute information.
4. method as claimed in claim 3, is characterized in that, the reading attributes request, and the result receives request, and connection request and attribute receive request and adopt unified frame structure;
Described frame structure comprises guidance code field, version number field, sensor address field, protocol Data Unit PDU length field, the first checksum field, protocol Data Unit data field and the second checksum field;
Described protocol Data Unit data field comprises function code field and performance data unit F DU data field;
Wherein, the first checksum field is carried the content for described frame structure, adopt verification that the first algorithm determines and;
The second checksum field is carried the content for described frame structure, adopt verification that the second algorithm determines and.
5. method as claimed in claim 4, is characterized in that, the frame structure that described function code field is carried the first appointment numerical value means connection request;
The frame structure that described function code field is carried the second appointment numerical value means the reading attributes request;
Described function code field is carried the 3rd and is specified the frame structure of numerical value to mean that attribute receives request, and the performance data unit F DU data field content of described frame structure is attribute information;
Described function code field is carried the 4th and is specified the frame structure of numerical value to mean that the result receives request.
6. method as described as claim 4 or 5, it is characterized in that, after the connection request that terminal sends according to the sensor communication protocol receiving sensor, terminal is according to the described connection request received, before determining that described transducer accesses successfully, described method also comprises:
The verification that in the frame structure of the expression connection request that the terminal verification receives, the first checksum field is carried and, and utilize the first algorithm, the numerical value of determining according to the content of this frame structure received is consistent;
And/or the verification that in the frame structure of the expression connection request that receives of verification, the second checksum field is carried and, and utilize the second algorithm, the numerical value of determining according to the content of this frame structure received is consistent.
7. method as described as claim 4 or 5, it is characterized in that, after terminal receives the attribute reception request of described transducer according to the sensor communication protocol transmission, terminal is according to the described connection request received, before determining that described transducer accesses successfully, described method also comprises:
Expression attribute that the terminal verification receives receive verification that in the frame structure of request, the first checksum field is carried and, and utilize the first algorithm, the numerical value of determining according to the content of this frame structure received is consistent;
And/or the expression attribute that receives of verification receive verification that in the frame structure of request, the second checksum field is carried and, and utilize the second algorithm, the numerical value of determining according to the content of this frame structure received is consistent.
8. a transducer access detection method, is characterized in that, described method comprises:
Transducer is determined and self has been carried out reset operation;
Transducer sends described connection request according to sensor communication protocol to terminal, and indicating terminal determines that according to described connection request transducer accesses successfully.
9. method as claimed in claim 8, is characterized in that, transducer is according to sensor communication protocol after terminal sends connection request, and described method also comprises:
Transducer receives according to sensor communication protocol the reading attributes request that described terminal sends, and described reading attributes request is for asking the attribute information of read sensor;
Transducer sends attribute according to sensor communication protocol to described terminal and receives request, and described attribute receives the attribute information that carries transducer in request.
10. method as claimed in claim 9, is characterized in that, transducer is according to sensor communication protocol after described terminal sends attribute reception request, and described method also comprises:
Transducer receives according to sensor communication protocol the result reception request that described terminal sends, and described the result receives in request and carries the legitimacy check results for described attribute information;
Transducer, according to the legitimacy check results of described attribute information, is determined the described terminal success of access or failure.
11. method as claimed in claim 10, is characterized in that, the reading attributes request, and the result receives request, and connection request and attribute receive request and adopt unified frame structure;
Described frame structure comprises guidance code field, version number field, sensor address field, protocol Data Unit PDU length field, the first checksum field, protocol Data Unit data field and the second checksum field;
Described protocol Data Unit data field comprises function code field and performance data unit F DU data field;
Wherein, the first checksum field is carried the content for described frame structure, adopt verification that the first algorithm determines and;
The second checksum field is carried the content for described frame structure, adopt verification that the second algorithm determines and.
12. method as claimed in claim 11, is characterized in that, the frame structure that described function code field is carried the first appointment numerical value means connection request;
The frame structure that described function code field is carried the second appointment numerical value means the reading attributes request;
Described function code field is carried the 3rd and is specified the frame structure of numerical value to mean that attribute receives request, and the performance data unit F DU data field content of described frame structure is attribute information;
Described function code field is carried the 4th and is specified the frame structure of numerical value to mean that the result receives request.
13. method as described as claim 11 or 12, it is characterized in that, after transducer receives the reading attributes request of described terminal transmission according to sensor communication protocol, before transducer sends attribute reception request according to sensor communication protocol to described terminal, described method also comprises:
The verification that in the frame structure of the expression reading attributes request that sensor calibration receives, the first checksum field is carried and, and utilize the first algorithm, the numerical value of determining according to the content of this frame structure received is consistent;
And/or the verification that in the frame structure of the expression reading attributes request that receives of verification, the second checksum field is carried and, and utilize the second algorithm, the numerical value of determining according to the content of this frame structure received is consistent.
14. method as described as claim 11 or 12, it is characterized in that, after transducer receives the result reception request of described terminal transmission according to sensor communication protocol, transducer is according to the legitimacy check results of described attribute information, before determining the described terminal success of access or failure, described method also comprises:
Expression the result that sensor calibration receives receive verification that in the frame structure of request, the first checksum field is carried and, and utilize the first algorithm, the numerical value of determining according to the content of this frame structure received is consistent;
And/or the expression the result that receives of verification receive verification that in the frame structure of request, the second checksum field is carried and, and utilize the second algorithm, the numerical value of determining according to the content of this frame structure received is consistent.
15. a transducer access testing system is characterized in that described system comprises transducer and terminal, wherein:
Described transducer, self carried out reset operation for determining, according to sensor communication protocol, to terminal, sends described connection request;
Described terminal, the connection request sent for receiving described transducer, and, according to the described connection request received, determine that described transducer accesses successfully.
16. system as claimed in claim 15, is characterized in that,
Described terminal, also for according to sensor communication protocol, to described transducer, sending the reading attributes request, the attribute information of described transducer is read in described reading attributes request for request, receive the attribute reception request that described transducer sends, described attribute receives the attribute information that carries described transducer in request, and specifically for the legitimacy of the described attribute information of verification, and when definite described attribute information is legal, determine that described transducer is legal transducer, and access successfully;
Described transducer, the reading attributes request also sent for receiving terminal, and send attribute reception request according to sensor communication protocol to described terminal.
17. system as claimed in claim 16, is characterized in that,
Described terminal, also receive request for according to sensor communication protocol, to described transducer, sending the result, and described the result receives in request and carries the legitimacy check results for described attribute information;
Described transducer, also receive request for receiving described the result, according to the legitimacy check results of described attribute information, determines the described terminal success of access or failure.
18. system as claimed in claim 17, is characterized in that, the reading attributes request, and the result receives request, and connection request and attribute receive request and adopt unified frame structure;
Described frame structure comprises guidance code field, version number field, sensor address field, protocol Data Unit PDU length field, the first checksum field, protocol Data Unit data field and the second checksum field;
Described protocol Data Unit data field comprises function code field and performance data unit F DU data field;
Wherein, the first checksum field is carried the content for described frame structure, adopt verification that the first algorithm determines and;
The second checksum field is carried the content for described frame structure, adopt verification that the second algorithm determines and.
19. system as claimed in claim 18, is characterized in that, the frame structure that described function code field is carried the first appointment numerical value means connection request;
The frame structure that described function code field is carried the second appointment numerical value means the reading attributes request;
Described function code field is carried the 3rd and is specified the frame structure of numerical value to mean that attribute receives request, and the performance data unit F DU data field content of described frame structure is attribute information;
Described function code field is carried the 4th and is specified the frame structure of numerical value to mean that the result receives request.
20. a transducer access checkout gear, is characterized in that, described device comprises:
Receiving element, for the connection request sent according to the sensor communication protocol receiving sensor;
Detecting unit, for the described connection request according to receiving, determine that described transducer accesses successfully.
21. device as claimed in claim 20, is characterized in that, described device also comprises:
Transmitting element, for according to sensor communication protocol, to described transducer, sending the reading attributes request, the attribute information of described transducer is read in described reading attributes request for request;
Described receiving element, the attribute reception request also sent according to sensor communication protocol for receiving described transducer, described attribute receives the attribute information that carries described transducer in request;
Described detecting unit, the legitimacy of the described attribute information received specifically for the verification receiving element, and, when definite described attribute information is legal, determines that described transducer is legal transducer, and access successfully.
22. device as claimed in claim 21, is characterized in that, described device also comprises:
Notification unit, receive request for according to sensor communication protocol, to described transducer, sending the result, and described the result receives in request and carries the legitimacy check results for described attribute information.
23. device as claimed in claim 22, is characterized in that, described device also comprises:
Verification unit, the verification that frame structure first checksum field of the expression connection request received for verification is carried and, and utilize the first algorithm, the numerical value of determining according to the content of this frame structure received is consistent; And/or the verification that in the frame structure of the expression connection request that receives of verification, the second checksum field is carried and, and utilize the second algorithm, the numerical value of determining according to the content of this frame structure received is consistent.
24. device as claimed in claim 22, is characterized in that, described device also comprises:
Verification unit, the expression attribute received for verification receive verification that frame structure first checksum field of request carries and, and utilize the first algorithm, the numerical value of determining according to the content of this frame structure received is consistent; And/or the expression attribute that receives of verification receive verification that in the frame structure of request, the second checksum field is carried and, and utilize the second algorithm, the numerical value of determining according to the content of this frame structure received is consistent.
25. a transducer access checkout gear, is characterized in that, described device comprises:
Determining unit, carried out reset operation for determining transducer;
Transmitting element, for according to sensor communication protocol, to terminal, sending described connection request, indicating terminal determines that according to described connection request transducer accesses successfully.
26. device as claimed in claim 25, is characterized in that, described device also comprises:
Receiving element, the reading attributes request sent for receive described terminal according to sensor communication protocol, described reading attributes request is for asking the attribute information of read sensor;
Described transmitting element, also receive request for according to sensor communication protocol, to described terminal, sending attribute, and described attribute receives the attribute information that carries transducer in request.
27. device as claimed in claim 26, it is characterized in that, described receiving element, the result reception request also sent for receive described terminal according to sensor communication protocol, described the result receives in request and carries the legitimacy check results for described attribute information, according to the legitimacy check results of described attribute information, determine the described terminal success of access or failure.
28. device as claimed in claim 27, is characterized in that, described device also comprises:
Verification unit, the verification that frame structure first checksum field of the expression reading attributes request received for verification is carried and, and utilize the first algorithm, the numerical value of determining according to the content of this frame structure received is consistent; And/or the verification that in the frame structure of the expression reading attributes request that receives of verification, the second checksum field is carried and, and utilize the second algorithm, the numerical value of determining according to the content of this frame structure received is consistent.
29. device as claimed in claim 27, is characterized in that, described device also comprises:
Verification unit, the expression the result received for verification receive verification that frame structure first checksum field of request carries and, and utilize the first algorithm, the numerical value of determining according to the content of this frame structure received is consistent; And/or the expression the result that receives of verification receive verification that in the frame structure of request, the second checksum field is carried and, and utilize the second algorithm, the numerical value of determining according to the content of this frame structure received is consistent.
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| CN2012101840500A CN103457786A (en) | 2012-06-05 | 2012-06-05 | Sensor access detection method, device and system |
| PCT/CN2013/076784 WO2013182053A1 (en) | 2012-06-05 | 2013-06-05 | Sensor access detection method, device and system |
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| CN2012101840500A CN103457786A (en) | 2012-06-05 | 2012-06-05 | Sensor access detection method, device and system |
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