CN206421206U - A kind of monitoring system of cascaded logic door-controlled type active electronic label - Google Patents

Abstract

The utility model belongs to the field of electronic labels and discloses a monitoring system for cascade logic gate-controlled active electronic labels. The system takes the event monitoring layer as the bottom layer, and the logic gate layer is an inverted tree structure on the upper layer. Both the event monitoring layer and the logic gate layer have multiple nodes. Each node of the event monitoring layer is placed with an electronic label A, and each node of the logic gate layer An electronic tag B is placed on the node, and the electronic tag A presents the security status of each event, and transmits the logic state of each event to the upper layer of the electronic tag B, and the logic gate status evaluation module in the electronic tag B will The logical state of the next layer is logically operated, and the security state of the logical node is displayed, and the logical state of the node is passed to the electronic label B of the upper layer, thereby establishing a multi-level cascade with the logical node as the terminal logical system. The utility model can realize real-time monitoring of multiple events, multi-level and multi-parameter security status of objects.

Description

A monitoring system of cascade logic gated active electronic tags

technical field

The invention belongs to the field of electronic tags, and more specifically relates to a monitoring system for cascade logic gate-controlled active electronic tags.

Background technique

Electronic tag is a common name for radio frequency identification (RFID). Radio frequency identification technology is a technology that uses radio frequency signals to achieve non-contact information transmission through spatial coupling and achieves automatic identification through the transmitted information. When the electronic tag enters the magnetic field, it receives the radio frequency signal sent by the reader, and sends out the item information stored in the chip by virtue of the energy obtained by the induced current, or actively sends a signal of a certain frequency. After the reader reads and decodes the information, it sends radio waves with a certain working frequency to automatically read and write the data information in the tag, and then sends it to the data management system for processing.

RFID electronic tag is a breakthrough technology. First, it can identify a single very specific object, instead of only identifying one type of object like a bar code; second, it uses radio frequency to read data through external materials. , while barcodes must rely on lasers to read information; finally, RFID electronic tags can read multiple objects at the same time, while barcodes can only be read one by one, and the amount of information stored is also very large. However, the existing electronic tag is only a tag that can be written and read to mark the information of a single object, and cannot monitor the security status of a single object or even a system composed of multiple objects, let alone monitor the security status of a system composed of multiple objects. Judging and presenting the security status of the system.

Contents of the invention

Aiming at the above defects or improvement needs of the prior art, the present invention provides a monitoring system for cascade logic gated active electronic tags. By constructing a cascade logic system, the purpose is to monitor the safety status of the whole system and each component of the system , and clearly displayed, thereby solving the technical problem of judging and presenting the security status of a system composed of multiple objects.

In order to achieve the above object, according to the present invention, a monitoring system of a cascade logic gated active electronic tag is provided, the electronic tag includes an electronic tag A and an electronic tag B, and the sensor A4 of the electronic tag A collects data to be monitored The information of the object is then transmitted to the controller A1, the controller A1 judges the logical result of the received information and makes the indicating module A2 carry out corresponding early warning, the information of the object to be monitored and the logical result are stored in the memory A6, and at the same time The logic result is transmitted externally by the wireless module A3; the logic gate control state evaluation module B4 of the electronic tag B is used to perform logical operations on the logical results from the outside world, and the electronic tag B is set in the same way as the electronic tag A The part has the same function as it, for the monitoring system of the electronic tag, it is characterized in that,

The monitoring system is an N-layer inverted tree structure, each layer contains a plurality of nodes, and each node corresponds to a plurality of nodes in the next layer as branches, wherein the bottom layer of each monitoring system is the event monitoring layer , each node of this layer corresponds to one of the electronic tags A, the other layers of the monitoring system are logic gate layers, and each node of this layer corresponds to one of the electronic tags B;

The logic result of the node in the event monitoring layer is displayed by the indication module A2, and the logic result is passed to the electronic tag B corresponding to the node on the upper layer of the event monitoring layer, and the electronic tag B is responsible for the Perform logical operations on the logical results to obtain a new logical result, and then display an early warning of the new logical result through the indication module B2, and pass the new logical result to the upper layer node of the layer where the electronic label B is located until the completion Transfer from layer N-1 to layer N, where N is a positive integer greater than 1.

As a further preferred embodiment, the logic result takes a value of 0 or 1, "0" means safe, and "1" means unsafe.

As a further preference, the logical operation is preferably performed according to the following expression, wherein R _i,j is the logical result of the jth node of the i-th layer, and R _i-1,m is the mth node of the i-1th layer The logical result of a node,

R _i,j =OR[R _i-1,1 ,...,R _i-1,m ].

As a further preference, the status of the event M monitored by the electronic tag A includes, for example, stress, strain, personnel status and equipment status.

As a further preference, the evaluation module of the logic gate control state is a single-chip microcomputer.

As a further preference, the indication modules A2 and B2 display the status of the nodes in the form of sound, light or electricity.

Generally speaking, compared with the prior art, the above technical solutions conceived by the present invention can achieve the following beneficial effects:

1. The controller A of the present invention can analyze the sensor data and judge the safety state according to the preset safety limit value. The logic gate control state evaluation module can evaluate the overall safety state according to the safety state of the subordinate nodes, so it has the ability to analyze and evaluate the safety level of the monitoring object function;

2. The present invention realizes simultaneous monitoring of the security status of a system composed of multiple events by constructing an inverted tree-like cascade logic system composed of electronic tags A and B; and the security status of multiple objects is passed through each Indicators for event nodes and logical nodes are rendered;

3. The present invention realizes the transfer of information between different layers by setting a logic gating status evaluation module in the electronic label B, and through simple logic operations, and keeps unsafe information, so that the entire cascaded logic system Information is passed on and presented;

4. The present invention is of great significance for the safety production monitoring of engineering equipment and facilities or production organizations with multi-level and multi-factors in the production process. It clearly and clearly displays the security status of the equipment, facilities and organizations corresponding to the electronic label, which is convenient for on-site management personnel To understand the status of equipment, facilities or production organization, timely discover and correct potential safety hazards.

Description of drawings

Fig. 1 is the monitoring system of the 3-layer cascade logic gated active electronic tag constructed according to the preferred embodiment of the present invention;

Fig. 2 is a structural diagram of electronic tag A constructed according to a preferred embodiment of the present invention;

Fig. 3 is a structural diagram of electronic tag B constructed according to a preferred embodiment of the present invention;

Fig. 4 is a working flow chart of the logic-gated active electronic label monitoring system constructed according to the preferred embodiment of the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

Fig. 1 is a monitoring system of a 3-layer cascaded logic-gated active electronic tag constructed according to a preferred embodiment of the present invention. As shown in Fig. 1, the system is divided into an event monitoring layer and a two-layer logic gate layer. Combined to form a cascade logic system, the cascade logic system is equivalent to a fault tree, the logical connection of each node in each layer of the system is equivalent to the causal connection between the basic event and the top-level event in system security, and the event monitoring layer is the first layer of the cascade logic system , the logic gate layer is the second layer and the third layer. There are 12 nodes in the event monitoring layer (A _1,1 , A _1,2 , ..., A _1,12 ), and the corresponding logical states are R _1,1 , R _1,2 , ..., R _1,12 ; The 2-layer logic gate layer has 3 nodes (A _2,1 , A _2,2 , A _2,3 ), and the corresponding logic states are R _2,1 , R _2,2 , R _2,3 ; 3-layer logic gate There is 1 node (A _3,1 ) in the layer, and the corresponding logical state is R _3,1 . A _i,j represents the jth node of the i-th layer, and R _i,j represents the logic state of A _i,j . (i=1, 2, 3, ...; j = 1, 2, 3, ...; R _{i, j} = 0 or 1, 0 represents "safe", 1 represents "unsafe")

In the cascaded logic system, 12 electronic tags A are arranged on 12 nodes in the event monitoring layer, and 4 electronic tags B are arranged on a total of 4 nodes in the second and third layers of the logic gate layer, thus forming a The event is the bottom layer, and the inverted tree structure with the logic gate as the terminal node.

Fig. 2 is a structure diagram of an electronic tag A constructed according to a preferred embodiment of the present invention. As shown in Fig. 2, the electronic tag A includes a sensor A4, a controller A1, a memory A6, a wireless module A3, an indicating module A2, and a power supply A5 etc., wherein the sensor A4 is connected to the object to be measured for real-time monitoring of events, and transmits the monitoring information to the controller A1; the controller A1 reads the data sent by the sensor, analyzes and evaluates the data on the one hand, and according to the forecast Set a safety limit value to form a logic state R _1,M , and control the indicator module A2 to display the event safety state, on the other hand, control the memory A1 to store event data, and control the wireless module A3 to transmit the logic state to the upper node. The above-mentioned modules pass The power supply A5 is used for power supply.

Fig. 3 is a structural diagram of electronic tag B constructed according to a preferred embodiment of the present invention. As shown in Fig. 3, electronic tag B includes logic gating state evaluation module B4, controller B1, memory B6, wireless module B3, indicating module B2, power supply B5, etc., wherein, on the one hand, the controller B1 controls the wireless module B3 to communicate with the wireless module A3 in each electronic tag A, and then obtains the logic state R _1,1 ,...,R ₁ in each subordinate event layer _{, M} ; In addition, the logic state of the subordinate event layer is transmitted to the logic gate control state evaluation module for logical OR operation; after the logic gate control state evaluation module obtains the logic OR operation result, the controller B1 controls the memory B6 to store the subordinate node logic on the one hand The status and logic operation results, on the one hand, control the indicator module B2 to display the safety status of the logical node, and the above-mentioned modules are powered by the power supply B5.

Fig. 4 is a working flow chart of the cascaded logic-gated active electronic tag monitoring system constructed according to the preferred embodiment of the present invention. As shown in Fig. , including the following steps:

(1) The initialization port of controller A1 in the electronic label A, the safety limit value and the wireless module A3; the initialization port of the controller B1 in the electronic label B and the wireless module B3;

(2) a cascade logic system of communication components between the wireless module A3 and the wireless module B3 (or between different wireless modules B3),

Steps in electronic label A:

(3) The sensor collects the monitoring object information;

(4) The monitoring data is transmitted to the controller A1;

(5) The controller judges whether the monitoring data reaches the safety limit value, if yes, enters step (6), if no, enters step (7);

(6) generate logic language 1, indicate module A2 early warning, enter step (8);

(7) Generate logic language 0;

(8) The controller A1 controls the indicating module A2 to display the safety state of the object;

(9) The controller A1 controls the memory A6 to store monitoring data and logic results;

(10) The controller A1 controls the wireless module A3 to transmit the logic result to the superior node;

Steps in electronic label B:

(11) The controller B1 controls the wireless module B3 to receive the logic result of the subordinate node;

(12) The controller B1 reads the logic results of the subordinate nodes, packages and sends them to the logic gating status evaluation module B4;

(13) The logic gate control state assessment module B4 performs a logic OR operation; if the logic OR operation result is 1, enter step (14), if the logic OR operation result is 0, enter step (15);

(14) Instruct module B2 early warning, enter step (16);

(15) The controller B1 controls the indicator module B2 to display the object security status;

(16) Controller B1 controls memory B6 to store subordinate node logic signals and its own logic results;

(17) If there is a superior node, the controller B1 controls the wireless module B3 to transmit the logic result to the superior node, and enters step (11); if there is no superior node, enters step (18)

(18) The controller B1 controls the wireless module B3 to transmit the logic source and logic result to the cloud platform of the management center.

Taking the monitoring system of the 3-layer cascaded logic gated active electronic tag in Fig. 1 as an example, the sensors in the 12 electronic tags A are connected to 12 objects to be tested for real-time monitoring of events of each object (such as stress 1 , Stress 2,..., Stress 12), and transmit the monitoring information to their respective controllers A1; the controller A1 of each electronic tag A reads the data sent by the sensor, and analyzes and evaluates the data on the one hand, according to the preset safety limit value, form the logical state R _1,1 , R _1,2 ,..., R _1,12 , and control the respective indicator module A2 to display the event security state, and generate an early warning signal when the logical state is 1; on the other hand, each electronic The tag A controls the memory A6 to store event data; the controller A1 in each electronic tag A then controls the wireless module A3 to transmit the logic state to the upper node. (A _1,1 , A _1,2 , A _1,3 , A _1,4 nodes transmit to A _2,1 ; A _1,5 , A _1,6 , A _1,7 , A _1,8 nodes transmit to A _2,2 transmission; A _1,9 , A _1,10 , A _1,11 , A _1,12 nodes transmit to A _2,3 ).

The controllers B1 of the three nodes A _2,1 , A _2,2 , and A _2,3 in the second layer of the cascaded logic system control their wireless module B3 and the wireless module A3 of the subordinate electronic tag A on the one hand. Communication, and then obtain the logic state in each subordinate event layer (electronic tag B of A _2,1 communicates with electronic tag A in A _1,1 , A _1,2 , A _1,3 , A _1,4 ; A _{2 ,2} electronic tag B communicates with A _1,5 , A _1,6 , A _1,7 , A _1,8 electronic tag A; A _2,3 electronic tag B communicates with A _1,9 , A _{1, 10} , A _1,11 , A _1,12 electronic tags in A communication).

In addition, the logic state of the subordinate event layer is transmitted to the evaluation module of the logic gate control state for logical OR operation, namely:

In A _2,1 , R _2,1 = OR[R _1,1 ,R _1,2 ,R _1,3 ,R _1,4 ];

In A _2,2 , R _2,2 = OR[R _1,5 ,R _1,6 ,R _1,7 ,R _1,8 ];

In A _2,3 , R _2,3 =OR[R _1,9 , R _1,10 , R _1,11 , R _1,12 ].

After the logic gating state evaluation module obtains the logic or operation result, each controller B1 controls the memory B6 to store the logic state and logic operation result of the subordinate node on the one hand, and controls the indicating module B2 to display the security state of the logic node on the other hand. When it is 1, an early warning signal is generated.

In addition, the controller B1 in the electronic tag B in the second layer then controls the wireless module B3 to transmit the logic state to the nodes in the third layer.

The controller B1 in the third layer node A _3,1 controls the wireless module B3 to communicate with the wireless module B3 in the electronic tag B in the subordinate A _2,1 , A _2,2 , A _2,3 nodes, and transmits the subordinate logic state To the logic gate state evaluation module for logical OR operation, that is, R _3,1 =OR[R _2,1 , R _2,2 , R _3,3 ].

After the logical or operation result is obtained by the logic gating state evaluation module, the controller B1 controls the memory B6 to store the logic state and the logic operation result of the subordinate node on the one hand, and controls the indicating module B2 to display the security state of the logic node on the one hand. When the logic state is 1, an early warning signal is generated.

In addition, the controller B1 in the electronic tag B at the third logic gate layer then controls the wireless module B3 to transmit the logic state to the cloud platform of the management center.

So far, the monitoring system of the 3-layer cascade logic gated active electronic tag has been established.

Those skilled in the art can easily understand that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention, All should be included within the protection scope of the present invention.

Claims (6)

1. A monitoring system for a cascade logic gated active electronic tag, the electronic tag includes an electronic tag A and an electronic tag B, the sensor A4 of the electronic tag A collects the information of the object to be monitored and transmits it to the controller A1 , the controller A1 judges the logical result of the received information and makes the indicating module A2 perform a corresponding early warning, the information of the object to be monitored and the logical result are stored in the memory A6, and the logical result is sent to the wireless module A3 by the wireless module A3 External transfer; the logic gate control state evaluation module B4 of the electronic tag B is used to perform logical operations on the logical results from the outside world, and other parts of the electronic tag B that are set the same as the electronic tag A have the same functions, For the monitoring system of electronic tags, it is characterized in that, The monitoring system is an N-layer inverted tree structure, each layer contains a plurality of nodes, and each node corresponds to a plurality of nodes in the next layer as branches, wherein the bottom layer of each monitoring system is the event monitoring layer , each node of this layer corresponds to one of the electronic tags A, the other layers of the monitoring system are logic gate layers, and each node of this layer corresponds to one of the electronic tags B; The logic result of the node in the event monitoring layer is displayed by the indication module A2, and the logic result is passed to the electronic tag B corresponding to the node on the upper layer of the event monitoring layer, and the electronic tag B is responsible for the Perform logical operations on the logical results to obtain a new logical result, and then display an early warning of the new logical result through the indication module B2, and pass the new logical result to the upper layer node of the layer where the electronic label B is located until the completion Transfer from layer N-1 to layer N, where N is a positive integer greater than 1. 2. The monitoring system according to claim 1, wherein the logic result takes a value of 0 or 1, "0" representing safety, and "1" representing unsafe. 3. monitoring system as claimed in claim 1 or 2, is characterized in that, described logic operation is carried out according to following expression, and wherein, R _{i, j} is the logic result of the jth node of i-th layer, R _{i- 1, m} is the logical result of the mth node of the i-1th layer, R _i,j =OR[R _i-1,1 ,...,R _i-1,m ]. 4. The monitoring system according to claim 3, wherein the state of the monitoring event M of the electronic tag A includes stress, strain, personnel state and equipment state. 5. The monitoring system according to claim 4, characterized in that, the evaluation module of the logic gate control state is a single-chip microcomputer. 6. The monitoring system according to claim 5, wherein the indication modules A2 and B2 display the status of the nodes in the form of sound, light or electricity.