CN102568135A - Data storing and matching method facing to pulse electronic fence system - Google Patents

Abstract

The invention discloses a data storage and matching method oriented to an electronic fence system. First, the facts in the electronic fence system are determined, and then according to the Drools rule engine, the rule set corresponding to the facts of the pulse electronic fence system is determined; These known facts are stored in the server that stores the facts of the electronic fence system in the background; when new data is transmitted from the front end of the pulse electronic fence system, return to the previous step to continue the data re-matching. The present invention aims at the four alarm modes of the electronic fence system: disconnection, short circuit, anti-demolition, and communication failure; and the characteristics of the large data storage capacity of the system, making full use of the time redundancy and The characteristics of structural similarity avoid a large number of repeated matching and repeated calculation of common parts in the same way, thus greatly improving the matching efficiency.

Description

A data storage and matching method for pulse electronic fence system

technical field

The invention belongs to data storage and matching technology, in particular to a reliable data storage and matching method for pulse electronic fences.

Background technique

In some important places, such as large factories, residential areas, detention centers and other places where people are dense and difficult to manage, perimeter security and intrusion alarm systems are required.

For one of the more advanced perimeter alarm systems at present - the electronic fence system, an alarm signal can be generated when the front-end detection fence is in the state of disconnection, short circuit, tamper-proof, and communication failure. Examples of pulse electronic fences include, for example, the "smart electronic fence" disclosed in Chinese utility model patent CN2703088 and the "heartbeat detection electronic fence sensor system and detection method" disclosed in Chinese invention patent application CN101520933.

The current pulse electronic fence system generally adopts real-time data transmission, and does not comprehensively analyze the background data, which has the disadvantages of large data storage, time redundancy and similar structure.

Contents of the invention

The purpose of the present invention is to provide a reliable data storage matching method for the electric pulse sub-fence system, thereby reducing the complexity of system data storage matching.

The technical solution to realize the purpose of the present invention is: a data storage and matching method oriented to the pulse electronic fence system, the steps are as follows:

The first step is to determine the fact in the electronic fence system, which can be obtained from the pulse signal fed back to the pulse generator (host) and the detected resistance value;

In the second step, according to the Drools rule engine, determine the rule set corresponding to the pulse electronic fence system fact;

The third step is to match the known facts of the pulse electronic fence system according to the rule set determined in the second step, and these known facts are stored in the server that stores the facts of the electronic fence system in the background;

In the fourth step, when new data is transmitted from the front end of the pulse electronic fence system, return to the third step to continue the data re-matching.

Compared with the prior art, the present invention has significant advantages: the existing electronic fence system does not perform data matching on the data obtained from the front end of the fence, and the data volume is relatively large. However, the present invention fully utilizes the characteristics of time redundancy and structural similarity of the rule-based system, avoids a large number of repeated matching and repeated calculation of common parts in the same way, and thus greatly improves the matching efficiency.

Description of drawings

Figure 1 is a structural diagram of a data storage system based on an electronic fence system.

Figure 2 is a matching diagram based on the data storage facts of the electronic fence system.

Detailed ways

The present invention is a data storage and matching method oriented to the pulse electronic fence system, the steps are as follows:

The first step is to determine the fact in the electric fence system, which can be obtained from the pulse signal fed back into the pulse generator (host) and the detected resistance value. The facts here refer to the multivariate relationship between the data content of the electronic fence system and its related data. The data of the pulse electronic fence system refers to the resistance value R obtained from the front end of the electronic fence system. This multivariate relationship can be expressed by a simple triple: (parameter ^ attribute action), where the parameter refers to The data content, the attribute refers to whether the pulse electronic fence system obtains the feedback pulse signal and whether to arm the two attributes, the action refers to the three actions of the pulse electronic fence system: no alarm, open circuit alarm, and short circuit alarm; triples indicate if the pulse electronic fence system If the data has one of the above three attributes, you can get whether to execute the alarm and the action of the alarm type.

The second step is to determine the rules corresponding to the corresponding storage methods of the electronic fence system. The rules are composed of the former part and the latter part. The antecedent part is the condition part of the rule, which contains one or more conditions that trigger the rule, and the result is Boolean type; the latter part contains a series of actions to be executed after the rule is triggered. Assuming that the resistance value at both ends of the electronic fence transmitter is R ₀ , the rule set r consists of the following rules:

^获得反馈脉冲信号→不报警； r ₁ :

^ Obtain feedback pulse signal → no alarm;

 ^未获得反馈脉冲信号且布防→断路报警； r ₂ :

^The feedback pulse signal is not obtained and arming → open circuit alarm;

^获得脉冲信号→短路报警； r ₃ :

^Obtain pulse signal→short circuit alarm;

When the existing data satisfies the condition, the corresponding action is activated.

，该3条规则根据系统状态和已知事实获得；等待处理的事实有M个

，M可从电子围栏系统的前端围栏获得。那么在进行规则匹配的过程中，对于每一条规则r，都需要判断当前的f是否会使规则r的条件部分为真，如果结果为真，，则用f的实参值f _i ( i=1,2,…m)代替规则r中的前件部分，代替后即获得规则r的实例。 The third step is to match the known facts of the electronic fence system according to the rules determined in the second step. Suppose there are 3 rules in the rule set of the electronic fence system

, the three rules are obtained according to the system state and known facts; there are M facts waiting to be processed

, M can be obtained from the front fence of the electric fence system. Then in the process of rule matching, for each rule r , it is necessary to judge whether the current f will make the condition part of the rule r true, and if the result is true, then use the actual parameter value f _i of f ( i= 1,2,...m) to replace the antecedent part of the rule r , and get the instance of the rule r after the replacement.

The specific matching steps are as follows:

1. Take out a rule r from the 3 rules in the rule set;

2. Take out a combination sequence c formed by p facts from the M facts already stored in the database, the p value is greater than or equal to 1, and the combination sequence c is composed of the above p facts;

3. Use the combination c to judge the condition part of the rule r . If the antecedent part is true, save the latter part and execute the corresponding action.

4. Read the next combination c , go to step 3 and continue to judge the condition part of rule r ;

5. Read the next rule r and go to step 2.

The fourth step is to perform data re-matching when new data is transmitted from the front end of the electronic fence system. After each fact change, the various actions and states generated during the matching operation are saved, and when the fact is changed next time, most of these stored states will not change; integrate the common parts in the same way in the rules together to reduce repeated operations on common parts. For each method, a matching list will be attached to record the matching relationship between the existing method and the fact. When adding a new fact, all the methods that can match the fact will be found and added to the fact to the corresponding relationship of the corresponding mode in the matching list.

The present invention will be described in further detail below in conjunction with the accompanying drawings.

With reference to Fig. 1, the present invention relates to a reliable electronic fence system-oriented data storage matching method, the steps are as follows:

Step one, establish the facts. In the electronic fence system, electronic fence and host data have six kinds of storage facts stored in the database. Expressed in triplets as:

f ₁ : (normal^arming, no alarm); f ₂ : (broken line^arming, broken line alarm); f ₃ : (short circuit^arming, short circuit alarm); f ₄ : (tampering^arming, no alarm); f ₅ : (communication failure ^ arm communication failure alarm); f ₆ : (power ^ disarm no alarm).

The second step is to determine the rules corresponding to the corresponding storage methods, corresponding facts correspond to corresponding storage in the database, and establish a rule base:

^获得反馈脉冲信号→不报警； r ₁ :

^ Obtain feedback pulse signal → no alarm;

 ^未获得反馈脉冲信号且布防→断路报警； r ₂ :

^The feedback pulse signal is not obtained and arming → open circuit alarm;

^获得脉冲信号→短路报警； r ₃ :

^Obtain pulse signal→short circuit alarm;

，等待处理的数据也就是事实有M个

，这M个事实是从电子围栏系统的前端围栏传至服务器的数据。在进行规则匹配的过程中，对于每一条规则r，都需要判断当前的事实f是否会使规则r的条件部分为真，如果结果为真，则用f的实参值f _i ( i=1,2,…m)代替规则r中的前件部分，代替后即获得规则r的实例。 The third step, as shown in Figure 2, there are 3 rules in the rule set of the electronic fence system

, the data waiting to be processed is the fact that there are M

, these M facts are data transmitted from the front fence of the electronic fence system to the server. In the process of rule matching, for each rule r , it is necessary to judge whether the current fact f will make the condition part of the rule r true, and if the result is true, use the actual parameter value f _i of f ( i=1 ,2,...m) replace the antecedent part of the rule r , and get the instance of the rule r after the replacement.

The fourth step is to save the various actions and states generated during the matching operation after each fact is changed. When the fact is changed next time, most of these stored states will not change; the same method in the rule The common parts are integrated together to reduce the repeated operations of the common parts. For each method, a matching list will be attached to record the matching relationship between the existing method and the fact. When adding a new fact, all the methods that can match the fact will be found and added to the fact. to the corresponding relationship of the corresponding mode in the matching list.

Claims (4)

1. A data storage matching method for a pulse electronic fence system, characterized in that the steps are as follows: The first step is to determine the fact in the electronic fence system, which can be obtained from the pulse signal fed back into the pulse generator and the detected resistance value; In the second step, according to the Drools rule engine, determine the rule set corresponding to the pulse electronic fence system fact; The third step is to match the known facts of the pulse electronic fence system according to the rule set determined in the second step, and these known facts are stored in the server that stores the facts of the electronic fence system in the background; In the fourth step, when new data is transmitted from the front end of the pulse electronic fence system, return to the third step to continue the data re-matching. 2. The data storage matching method facing the pulsed electronic fence system according to claim 1, wherein the fact of the electronic fence system is the data of the pulsed electronic fence system and the multivariate relationship between these data, wherein the pulsed electronic fence system The data refers to the resistance value R obtained from the front end of the electronic fence system. The multivariate relationship is represented by a triplet: (parameter ^ attribute action); among them, the parameter refers to the data content in the pulse electronic fence system, and the attribute refers to the pulse electronic fence system. Whether the fence system obtains the feedback pulse signal and whether it is armed or not, the action refers to the three actions of the pulse electronic fence system: no alarm, open circuit alarm, and short circuit alarm; the triplet indicates that if the data of the pulse electronic fence system has the above three attributes One, you can get whether to execute the alarm and the action of the alarm type. 3. The data storage matching method facing the pulse electronic fence system according to claim 1, characterized in that: the rule in the step 2 is made up of an antecedent part and a subsequent part, wherein the antecedent part is a conditional part of the rule , contains one or more conditions for triggering the rule, and the result is Boolean type; the aftermath part contains the actions to be executed after the rule is triggered; assuming that the resistance value at both ends of the electronic fence transmitter is R ₀ , the rule set r consists of the following rules: r ₁ :

^ Obtain feedback pulse signal → no alarm; r ₂ :

^The feedback pulse signal is not obtained and arming → open circuit alarm; r ₃ :

^Obtain pulse signal→short circuit alarm; When the existing fact satisfies the condition, the corresponding action is activated. 4. the data storage matching method facing pulse electric fence system according to claim 1, is characterized in that: According to the 3 rules in the rule set corresponding to the pulse electric fence system fact determined in step 2

, the three rules are obtained according to the system state and known facts; there are M facts waiting to be processed

, M can be obtained from the front fence of the electronic fence system; in the process of rule matching, for each rule r , it is necessary to judge whether the current f will make the condition part of the rule r true, and if the result is true, use The actual parameter value f _i (i=1,2,...m) of f replaces the antecedent part of the rule r , and the instance of the rule r is obtained after the replacement; The specific matching steps are as follows: In the first step, a rule r is taken out of the three rules in the rule set; In the second step, a combination sequence c formed by p facts is taken out from the M facts stored in the database, the value of p is greater than or equal to 1, and the combination sequence c is composed of the above p facts; The third step is to use the combination c to judge the condition part of the rule r , if the antecedent part is true, save the latter part and execute the corresponding action; The fourth step is to read the next combination c , and turn to the third step to continue to judge the condition part of the rule r ; The fifth step is to read the next rule r and return to the second step to continue execution.

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