CN109412848B - Fault diagnosis method and system based on life cycle management and control - Google Patents
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Abstract
The invention discloses a fault diagnosis method and a system based on life cycle management and control, wherein the fault diagnosis method comprises the following steps: collecting production information in each link of product production by a first mobile quality control terminal; sending a quality control information transmission request message to a quality control center host by a first mobile quality control terminal; receiving a quality control information transmission response message by a first mobile quality control terminal; determining, by the first mobile quality control terminal, a difference between a transmission delay amount included in the quality control information transmission response message and a transmission delay amount included in a quality control information transmission response message previously received by the first mobile quality control terminal; if the difference is larger than the threshold value, the first mobile quality control terminal waits for a random time interval; after the random time interval, the first mobile quality control terminal sends a quality control information transmission request message to the quality control center host again; if the difference is less than the threshold, a specified operation is performed.
Description
Technical Field
The invention relates to the technical field of product quality management, in particular to a fault diagnosis method and system based on life cycle management and control.
Background
Today's manufacture in china has undergone tremendous changes. The production capacity and the production mode of the manufacturing industry in China are greatly changed. Because of the large population of china and the competitive advantage of our manufacturing enterprise of inexpensive labor, these plants take full advantage of the low cost and receive a large number of manufacturing outsourcing orders. The manufacturing industry also generates clusters, and factories such as toys, textiles, injection molding and IT high-tech and the like are developed in coastal areas respectively. From the capacity measurement of the manufacturing industry in China, China is famous and listed as the top of the world. However, the old production management mode has become a tradition stone developed by enterprises, the high-end manufacturing technology is still not mature enough, the informatization construction process can be accelerated, and the changes of the manufacturing from 'manufacturing in China' to 'creating in China' are urgent and become common knowledge in the industry through computer digitization, lean production, quality tracking, inventory optimization and intelligent production. The development of basic industry and factory basic data and the development and integration level of basic spare and accessory parts become the key of the upgrading of the manufacturing industry in China. The high-end software technology of the manufacturing industry in China also depends on more foreign countries, so that the state advocates to independently develop intelligent manufacturing software suitable for the characteristics of the manufacturing industry in China, the production mode of the manufacturing industry in China is changed, and the complete progress of industrialization and informatization is realized.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a fault diagnosis method and system based on full-life cycle management and control, which can be used for simultaneously acquiring data of a plurality of devices in parallel and transmitting the data at the same time.
In order to achieve the above object, the present invention provides a fault diagnosis method based on life cycle management and control, comprising the following steps: collecting production information in each link of product production by a first mobile quality control terminal; sending a quality control information transmission request message to a quality control center host by a first mobile quality control terminal; receiving, by a first mobile quality control terminal, a quality control information transmission response message, wherein the quality control information transmission response message is sent by a quality control center host in response to receiving a quality control information transmission request message sent by the first mobile quality control terminal or a quality control information transmission request message sent by another mobile quality control terminal other than the first mobile quality control terminal, and wherein the quality control information transmission response message at least includes a transmission delay size and a random sequence; determining, by the first mobile quality control terminal, a difference between a transmission delay amount included in the quality control information transmission response message and a transmission delay amount included in a quality control information transmission response message previously received by the first mobile quality control terminal; if the difference is larger than the threshold value, the first mobile quality control terminal waits for a random time interval; after the random time interval, the first mobile quality control terminal sends a quality control information transmission request message to the quality control center host again; if the difference value is smaller than the threshold value, the first mobile quality control terminal sends a collision solving message to the quality control center host, wherein the collision solving message at least comprises a random sequence; and if the first mobile quality control terminal receives the collision solution response message and if the random sequence included in the collision solution response message is the same as the random sequence sent by the first mobile quality control terminal, sending the collected production information in each production link to a quality control center host by the first mobile quality control terminal, wherein the quality control center host can analyze the production information to obtain the production link with the problem, and wherein the collision solution response message is sent by the quality control center host in response to receiving the collision solution message.
In a preferred embodiment, the fault diagnosis method based on the full life cycle management comprises the following steps: if the first mobile quality control terminal receives a dedicated sequence after transmitting the quality control information transmission request message and before receiving the quality control information transmission response message, transmitting the dedicated sequence to the quality control center host by the first mobile quality control terminal, wherein the dedicated sequence is specific to the first mobile quality control terminal, and wherein the dedicated sequence is assigned to the first mobile quality control terminal by the quality control center host; receiving, by the first mobile quality control terminal, an acknowledgement message, wherein the acknowledgement message is sent by the quality control center host in response to receiving the dedicated sequence; and responding to the received confirmation message, and sending the collected production information in each production link to the quality control center host by the first mobile quality control terminal.
In a preferred embodiment, the fault diagnosis method based on the full life cycle management comprises the following steps: if the first mobile quality control terminal receives the dedicated sequence after transmitting the collision resolution message and before receiving the collision resolution response message, waiting for a predetermined period of time by the first mobile quality control terminal; and if the first mobile quality control terminal receives the collision resolution response message within the preset time period and if the random sequence included in the collision resolution response message is the same as the random sequence sent by the first mobile quality control terminal, sending the collected production information in each production link to the quality control center host by the first mobile quality control terminal.
In a preferred embodiment, the fault diagnosis method based on the full life cycle management comprises the following steps: if the first mobile quality control terminal does not receive the collision resolution response message within a predetermined time period, or if the random sequence included in the collision resolution response message is not identical to the random sequence transmitted by the first mobile quality control terminal, transmitting, by the first mobile quality control terminal, a dedicated sequence to the quality control center host, wherein the dedicated sequence is specific to the first mobile quality control terminal, and wherein the dedicated sequence is assigned to the first mobile quality control terminal by the quality control center host; receiving, by the first mobile quality control terminal, an acknowledgement message, wherein the acknowledgement message is sent by the quality control center host in response to receiving the dedicated sequence; and responding to the received confirmation message, and sending the collected production information in each production link to the quality control center host by the first mobile quality control terminal.
In a preferred embodiment, the fault diagnosis method based on the full life cycle management comprises the following steps: receiving random sequences sent by a plurality of mobile quality control terminals by a quality control center host; determining the quantity of quality control information transmission capable of being received simultaneously by a quality control center host; and the quality control center host randomly selects a plurality of mobile quality control terminals based on the quantity of quality control information transmission capable of being received simultaneously, and sends a collision solution response message to the selected mobile quality control terminals, wherein the collision solution response message at least comprises a random sequence which is received by the quality control center host and sent by the mobile quality control terminals.
The invention also provides a fault diagnosis system based on life cycle management and control, which comprises: a quality control center host; and a plurality of mobile quality control terminals, wherein the quality control center host is in wireless communication with the plurality of mobile quality control terminals, and wherein the mobile quality control terminals are configured to: collecting production information in each link of product production; sending a quality control information transmission request message to a quality control center host; receiving a quality control information transmission response message, wherein the quality control information transmission response message is sent by a quality control center host in response to receiving the quality control information transmission request message, and the quality control information transmission response message at least comprises a transmission delay size and a random sequence; determining a difference value between a transmission delay size included in the quality control information transmission response message and a transmission delay size included in a quality control information transmission response message previously received by the mobile quality control terminal; if the difference is greater than the threshold value, waiting for a random time interval; after the random time interval, sending a quality control information transmission request message to the quality control center host again; if the difference is smaller than the threshold value, sending a collision solving message to the quality control center host, wherein the collision solving message at least comprises a random sequence; and if the collision solution response message is received and if the random sequence included in the collision solution response message is the same as the sent random sequence, sending the collected production information in each production link to a quality control center host, wherein the quality control center host can analyze the production information to obtain the production link with the problem, and the collision solution response message is sent by the quality control center host in response to the received collision solution message.
In a preferred embodiment, the mobile quality control terminal is configured to: if a dedicated sequence is received after the quality control information transmission request message is transmitted and before the quality control information transmission response message is received, transmitting the dedicated sequence to the quality control center host, wherein the dedicated sequence is specific to the mobile quality control terminal, and wherein the dedicated sequence is assigned to the mobile quality control terminal by the quality control center host; receiving an acknowledgement message, wherein the acknowledgement message is sent by the quality control center host in response to receiving the dedicated sequence; and responding to the received confirmation message, and sending the collected production information in each production link to the quality control center host.
In a preferred embodiment, the mobile quality control terminal is configured to: waiting a predetermined period of time if the dedicated sequence is received after the collision resolution message is transmitted and before the collision resolution response message is received; and if the collision resolution response message is received within a preset time period and if the random sequence included in the collision resolution response message is the same as the random sequence sent by the mobile quality control terminal, sending the collected production information in each production link to the quality control center host.
In a preferred embodiment, the mobile quality control terminal is configured to: if the collision resolution response message is not received within a predetermined time period, or if a random sequence included in the collision resolution response message is not identical to a random sequence transmitted by the mobile quality control terminal, transmitting a dedicated sequence to the quality control center host, wherein the dedicated sequence is specific to the mobile quality control terminal, and wherein the dedicated sequence is assigned to the mobile quality control terminal by the quality control center host; receiving an acknowledgement message, wherein the acknowledgement message is sent by the quality control center host in response to receiving the dedicated sequence; and responding to the received confirmation message, and sending the collected production information in each production link to the quality control center host.
In a preferred embodiment, the quality control center host is configured to: receiving random sequences sent by a plurality of mobile quality control terminals; determining the number of quality control information transmissions that can be received simultaneously; and based on the quantity of quality control information transmission which can be received simultaneously, randomly selecting a plurality of mobile quality control terminals, and sending collision solution response messages to the selected mobile quality control terminals, wherein the collision solution response messages at least comprise random sequences which are received by the quality control center host and sent by the mobile quality control terminals.
Compared with the prior art, the invention has the following advantages: lean management is the direction of development of manufacturing companies, and the basis of lean management is to accurately grasp the state of a managed object in order to improve the management efficiency with respect to collected information of the managed object. In the current state of the art, the production process of many high-tech products includes many processes, and it is almost impossible to rely on the conventional method to accurately monitor these processes, so that it is necessary to use a mobile monitoring means based on wireless network to collect information. Aiming at the requirements in the prior art, the invention provides a fault diagnosis method based on full-life-cycle management and control, which is based on a wireless network, gives full play to the characteristics of the wireless network, is beneficial to upgrading and transforming the existing production line by small and medium-sized enterprises in order to realize less initial investment, convenient and quick equipment deployment, simple equipment use and low maintenance and maintenance cost of the method, and can simultaneously acquire and quasi-simultaneously transmit data of a plurality of pieces of equipment in parallel, and obtain a solution based on the parallel data.
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FIG. 1 is a flow diagram of a method according to an embodiment of the invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
FIG. 1 is a flow diagram of a method according to an embodiment of the invention. As shown in the figure, the method of the present invention comprises the steps of:
step 101: collecting production information in each link of product production by a first mobile quality control terminal;
step 102: sending a quality control information transmission request message to a quality control center host by a first mobile quality control terminal;
step 103: receiving, by a first mobile quality control terminal, a quality control information transmission response message, wherein the quality control information transmission response message is sent by a quality control center host in response to receiving a quality control information transmission request message sent by the first mobile quality control terminal or a quality control information transmission request message sent by another mobile quality control terminal other than the first mobile quality control terminal, and wherein the quality control information transmission response message at least includes a transmission delay size and a random sequence;
step 104: determining, by the first mobile quality control terminal, a difference between a transmission delay amount included in the quality control information transmission response message and a transmission delay amount included in a quality control information transmission response message previously received by the first mobile quality control terminal;
step 105: if the difference is larger than the threshold value, the first mobile quality control terminal waits for a random time interval;
step 106: after the random time interval, the first mobile quality control terminal sends a quality control information transmission request message to the quality control center host again;
step 107: if the difference value is smaller than the threshold value, the first mobile quality control terminal sends a collision solving message to the quality control center host, wherein the collision solving message at least comprises a random sequence; and
step 108: and if the first mobile quality control terminal receives the collision solution response message and if the random sequence included in the collision solution response message is the same as the random sequence sent by the first mobile quality control terminal, sending the collected production information in each production link to a quality control center host by the first mobile quality control terminal, wherein the quality control center host can analyze the production information to obtain the production link with the problem, and the collision solution response message is sent by the quality control center host in response to the received collision solution message.
In a preferred embodiment, the fault diagnosis method based on the full life cycle management comprises the following steps: if the first mobile quality control terminal receives a dedicated sequence after transmitting the quality control information transmission request message and before receiving the quality control information transmission response message, transmitting the dedicated sequence to the quality control center host by the first mobile quality control terminal, wherein the dedicated sequence is specific to the first mobile quality control terminal, and wherein the dedicated sequence is assigned to the first mobile quality control terminal by the quality control center host; receiving, by the first mobile quality control terminal, an acknowledgement message, wherein the acknowledgement message is sent by the quality control center host in response to receiving the dedicated sequence; and responding to the received confirmation message, and sending the collected production information in each production link to the quality control center host by the first mobile quality control terminal.
In a preferred embodiment, the fault diagnosis method based on the full life cycle management comprises the following steps: if the first mobile quality control terminal receives the dedicated sequence after transmitting the collision resolution message and before receiving the collision resolution response message, waiting for a predetermined period of time by the first mobile quality control terminal; and if the first mobile quality control terminal receives the collision resolution response message within the preset time period and if the random sequence included in the collision resolution response message is the same as the random sequence sent by the first mobile quality control terminal, sending the collected production information in each production link to the quality control center host by the first mobile quality control terminal.
In a preferred embodiment, the fault diagnosis method based on the full life cycle management comprises the following steps: if the first mobile quality control terminal does not receive the collision resolution response message within a predetermined time period, or if the random sequence included in the collision resolution response message is not identical to the random sequence transmitted by the first mobile quality control terminal, transmitting, by the first mobile quality control terminal, a dedicated sequence to the quality control center host, wherein the dedicated sequence is specific to the first mobile quality control terminal, and wherein the dedicated sequence is assigned to the first mobile quality control terminal by the quality control center host; receiving, by the first mobile quality control terminal, an acknowledgement message, wherein the acknowledgement message is sent by the quality control center host in response to receiving the dedicated sequence; and responding to the received confirmation message, and sending the collected production information in each production link to the quality control center host by the first mobile quality control terminal.
In a preferred embodiment, the fault diagnosis method based on the full life cycle management comprises the following steps: receiving random sequences sent by a plurality of mobile quality control terminals by a quality control center host; determining the quantity of quality control information transmission capable of being received simultaneously by a quality control center host; and the quality control center host randomly selects a plurality of mobile quality control terminals based on the quantity of quality control information transmission capable of being received simultaneously, and sends a collision solution response message to the selected mobile quality control terminals, wherein the collision solution response message at least comprises a random sequence which is received by the quality control center host and sent by the mobile quality control terminals.
The invention also provides a fault diagnosis system based on life cycle management and control, which comprises: quality control center host computer and a plurality of portable quality management and control terminal. Wherein the quality control center host wirelessly communicates with a plurality of mobile quality control terminals, and wherein the mobile quality control terminals are configured to: collecting production information in each link of product production; sending a quality control information transmission request message to a quality control center host; receiving a quality control information transmission response message, wherein the quality control information transmission response message is sent by a quality control center host in response to receiving the quality control information transmission request message, and the quality control information transmission response message at least comprises a transmission delay size and a random sequence; determining a difference value between a transmission delay size included in the quality control information transmission response message and a transmission delay size included in a quality control information transmission response message previously received by the mobile quality control terminal; if the difference is greater than the threshold value, waiting for a random time interval; after the random time interval, sending a quality control information transmission request message to the quality control center host again; if the difference is smaller than the threshold value, sending a collision solving message to the quality control center host, wherein the collision solving message at least comprises a random sequence; and if the collision solution response message is received and if the random sequence included in the collision solution response message is the same as the sent random sequence, sending the collected production information in each production link to a quality control center host, wherein the quality control center host can analyze the production information to obtain the production link with the problem, and the collision solution response message is sent by the quality control center host in response to the received collision solution message.
In a preferred embodiment, the mobile quality control terminal is configured to: if a dedicated sequence is received after the quality control information transmission request message is transmitted and before the quality control information transmission response message is received, transmitting the dedicated sequence to the quality control center host, wherein the dedicated sequence is specific to the mobile quality control terminal, and wherein the dedicated sequence is assigned to the mobile quality control terminal by the quality control center host; receiving an acknowledgement message, wherein the acknowledgement message is sent by the quality control center host in response to receiving the dedicated sequence; and responding to the received confirmation message, and sending the collected production information in each production link to the quality control center host.
In a preferred embodiment, the mobile quality control terminal is configured to: waiting a predetermined period of time if the dedicated sequence is received after the collision resolution message is transmitted and before the collision resolution response message is received; and if the collision resolution response message is received within a preset time period and if the random sequence included in the collision resolution response message is the same as the random sequence sent by the mobile quality control terminal, sending the collected production information in each production link to the quality control center host.
In a preferred embodiment, the mobile quality control terminal is configured to: if the collision resolution response message is not received within a predetermined time period, or if a random sequence included in the collision resolution response message is not identical to a random sequence transmitted by the mobile quality control terminal, transmitting a dedicated sequence to the quality control center host, wherein the dedicated sequence is specific to the mobile quality control terminal, and wherein the dedicated sequence is assigned to the mobile quality control terminal by the quality control center host; receiving an acknowledgement message, wherein the acknowledgement message is sent by the quality control center host in response to receiving the dedicated sequence; and responding to the received confirmation message, and sending the collected production information in each production link to the quality control center host.
In a preferred embodiment, the quality control center host is configured to: receiving random sequences sent by a plurality of mobile quality control terminals; determining the number of quality control information transmissions that can be received simultaneously; and based on the quantity of quality control information transmission which can be received simultaneously, randomly selecting a plurality of mobile quality control terminals, and sending collision solution response messages to the selected mobile quality control terminals, wherein the collision solution response messages at least comprise random sequences which are received by the quality control center host and sent by the mobile quality control terminals.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (2)
1. A fault diagnosis method based on life cycle management and control is characterized in that: the fault diagnosis method based on the life cycle management and control comprises the following steps:
collecting production information in each link of product production by a first mobile quality control terminal;
sending a quality control information transmission request message to a quality control center host by a first mobile quality control terminal;
receiving, by a first mobile quality control terminal, a quality control information transmission response message, wherein the quality control information transmission response message is sent by the quality control center host in response to receiving a quality control information transmission request message sent by the first mobile quality control terminal or a quality control information transmission request message sent by another mobile quality control terminal other than the first mobile quality control terminal, and wherein the quality control information transmission response message at least includes a transmission delay size and a random sequence;
determining, by a first mobile quality control terminal, a difference between a transmission delay size included in the quality control information transmission response message and a transmission delay size included in a quality control information transmission response message previously received by the first mobile quality control terminal;
if the difference value is larger than the threshold value, the first mobile quality control terminal waits for a random time interval;
after the random time interval, the first mobile quality control terminal sends a quality control information transmission request message to the quality control center host again;
if the difference value is smaller than a threshold value, the first mobile quality control terminal sends a collision resolution message to the quality control center host, wherein the collision resolution message at least comprises the random sequence; and
transmitting, by the first mobile quality control terminal, the collected production information in each link of production to the quality control center host if the first mobile quality control terminal receives a collision resolution response message and if a random sequence included in the collision resolution response message is the same as the random sequence transmitted by the first mobile quality control terminal, wherein the quality control center host is capable of analyzing the production information to obtain a production link in which a problem occurs, and wherein the collision resolution response message is transmitted by the quality control center host in response to receiving the collision resolution message,
the fault diagnosis method based on the life cycle management and control comprises the following steps:
transmitting, by the first mobile quality control terminal, a dedicated sequence to the quality control center host if the first mobile quality control terminal receives the dedicated sequence after transmitting a quality control information transmission request message and before receiving a quality control information transmission response message, wherein the dedicated sequence is specific to the first mobile quality control terminal, and wherein the dedicated sequence is assigned to the first mobile quality control terminal by the quality control center host;
receiving, by the first mobile quality control terminal, an acknowledgement message, wherein the acknowledgement message is sent by the quality control center host in response to receiving the dedicated sequence;
in response to receiving the confirmation message, the first mobile quality control terminal sends the collected production information in each production link to the quality control center host,
the fault diagnosis method based on the life cycle management and control comprises the following steps:
waiting, by the first mobile quality control terminal, for a predetermined period of time if the first mobile quality control terminal receives the dedicated sequence after transmitting the collision resolution message and before receiving the collision resolution response message;
transmitting, by the first mobile quality control terminal, the collected production information in each link of production to the quality control center host if the first mobile quality control terminal receives the collision resolution response message within the predetermined period of time and if a random sequence included in the collision resolution response message is identical to the random sequence transmitted by the first mobile quality control terminal,
the fault diagnosis method based on the life cycle management and control comprises the following steps:
transmitting, by the first mobile quality control terminal, the dedicated sequence to the quality control center host if the first mobile quality control terminal does not receive the collision resolution response message within a predetermined period of time or if a random sequence included in the collision resolution response message is not identical to the random sequence transmitted by the first mobile quality control terminal, wherein the dedicated sequence is specific to the first mobile quality control terminal, and wherein the dedicated sequence is assigned to the first mobile quality control terminal by the quality control center host;
receiving, by the first mobile quality control terminal, an acknowledgement message, wherein the acknowledgement message is sent by the quality control center host in response to receiving the dedicated sequence;
in response to receiving the confirmation message, the first mobile quality control terminal sends the collected production information in each production link to the quality control center host,
the fault diagnosis method based on the life cycle management and control comprises the following steps:
receiving random sequences sent by a plurality of mobile quality control terminals by the quality control center host;
determining the quantity of quality control information transmission capable of being received simultaneously by the quality control center host;
and randomly selecting a plurality of mobile quality control terminals by the quality control center host based on the quantity of the quality control information transmission capable of being received simultaneously, and sending a collision solution response message to the selected mobile quality control terminals, wherein the collision solution response message at least comprises a random sequence which is received by the quality control center host and sent by the mobile quality control terminals.
2. The utility model provides a fault diagnosis system based on full life cycle management and control which characterized in that: the fault diagnosis system based on the whole life cycle management and control comprises:
a quality control center host; and
a plurality of mobile quality control terminals, wherein the quality control center host wirelessly communicates with the plurality of mobile quality control terminals, and wherein the mobile quality control terminals are configured to:
collecting production information in each link of product production;
sending a quality control information transmission request message to a quality control center host;
receiving a quality control information transmission response message, wherein the quality control information transmission response message is sent by the quality control center host in response to receiving the quality control information transmission request message, and the quality control information transmission response message at least comprises a transmission delay size and a random sequence;
determining a difference value between the transmission delay size included in the quality control information transmission response message and the transmission delay size included in the quality control information transmission response message received by the mobile quality control terminal previously;
if the difference is larger than the threshold value, waiting for a random time interval;
after the random time interval, sending a quality control information transmission request message to the quality control center host again;
if the difference value is smaller than a threshold value, sending a collision resolution message to the quality control center host, wherein the collision resolution message at least comprises the random sequence;
transmitting the collected production information in each link of production to the quality control center host if a collision resolution response message is received and if a random sequence included in the collision resolution response message is the same as the transmitted random sequence, wherein the quality control center host is capable of analyzing the production information to obtain a production link in which a problem occurs, and wherein the collision resolution response message is transmitted by the quality control center host in response to receiving the collision resolution message,
the mobile quality control terminal is configured to:
transmitting a dedicated sequence to the quality control center host if the dedicated sequence is received after transmitting a quality control information transmission request message and before receiving a quality control information transmission response message, wherein the dedicated sequence is specific to the mobile quality control terminal, and wherein the dedicated sequence is assigned to the mobile quality control terminal by the quality control center host;
receiving an acknowledgement message, wherein the acknowledgement message is sent by the quality control center host in response to receiving the dedicated sequence;
in response to receiving the confirmation message, sending the collected production information in each production link to the quality control center host,
the mobile quality control terminal is configured to:
waiting a predetermined period of time if the dedicated sequence is received after the collision resolution message is transmitted and before the collision resolution response message is received;
if the collision resolution response message is received within the preset time period and if a random sequence included in the collision resolution response message is the same as the random sequence sent by the mobile quality control terminal, sending the collected production information in each production link to the quality control center host,
the mobile quality control terminal is configured to:
if the collision resolution response message is not received within a predetermined time period, or if a random sequence included in the collision resolution response message is not identical to the random sequence transmitted by the mobile quality control terminal, transmitting the dedicated sequence to the quality control center host, wherein the dedicated sequence is specific to the mobile quality control terminal, and wherein the dedicated sequence is assigned to the mobile quality control terminal by the quality control center host;
receiving an acknowledgement message, wherein the acknowledgement message is sent by the quality control center host in response to receiving the dedicated sequence;
in response to receiving the confirmation message, sending the collected production information in each production link to the quality control center host,
the quality control center host is configured to:
receiving random sequences sent by a plurality of mobile quality control terminals;
determining the number of quality control information transmissions that can be received simultaneously;
and based on the quantity of the quality control information transmission which can be received simultaneously, randomly selecting a plurality of mobile quality control terminals, and sending a collision solution response message to the selected mobile quality control terminals, wherein the collision solution response message at least comprises random sequences which are received by the quality control center host and sent by the mobile quality control terminals.
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