Leakage positioning detection system based on sensing fabric and method thereof

Abstract

The invention discloses a leakage positioning detection system and method based on sensing fabric, and belongs to the technical field of fabric detection, and the leakage positioning detection system comprises a control display center, an automatic gating module and a voltage comparison module; a first relay group and a second relay group which are respectively configured by a plurality of relays in parallel are arranged in the automatic gating module, and one end of each relay in the first relay group and the second relay group is respectively and independently connected to a conductive warp yarn with a to-be-detected conduction state of the sensing fabric; the other ends of the two relays are integrated according to the two relay groups and then are respectively connected with two input ends of the voltage comparison module; the output end of the power supply comparison module is electrically connected with the control display center, and the control display center is electrically connected with the automatic gating module.

Description

Technical Field

[0001] The invention belongs to the technical field of fabric detection, and in particular relates to a leakage positioning detection system and method based on sensor fabric. Background Art

[0002] In recent years, with the development of smart textiles, sensor fabrics that can detect multiple physical quantities such as pressure, temperature, and humidity have emerged. These fabrics are not only flexible and wearable, but can also detect the entire surface area within their range, which is not available in previous single-point sensors. For example, for conductive liquids, especially in the case of trace leakage, single-point detection can only be effective when the liquid flows through the sensor location, and often cannot detect the leak in time. However, sensor fabrics can quickly respond to trace amounts of liquid as low as a droplet dripping on their surface. On the other hand, when sensor fabrics are used on a large scale, such as laying in large warehouses with a length of tens or hundreds of meters or wrapped in long-distance pipelines, it is necessary not only to detect the occurrence of leaks, but also to feedback the specific area where the leak occurs, so as to facilitate further manual processing. The law of resistance is often used in situations where positioning is required, but the premise is that the resistance value measured at the end of the wire will not be affected or even overwhelmed by other factors. This is difficult to achieve in sensor fabrics because the conductivity, diffusion path and speed of the conductive liquid being measured will affect the resistance value measured at the end of the wire. Therefore, there is currently a lack of leakage location detection systems and methods based on sensing fabrics. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a leakage locating detection system and method based on a sensing fabric, which is more timely, reliable and convenient to operate for leakage detection in the sensing fabric.

[0004] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0005] In a first aspect, the present invention provides a leakage location detection system based on a sensor fabric, comprising a control display center, an automatic gating module and a voltage comparison module;

[0006] The automatic gating module is provided with a first relay group and a second relay group respectively composed of a plurality of relays connected in parallel, one end of each relay in the first relay group and the second relay group is respectively connected to a conductive warp yarn of the sensing fabric whose conductive state is to be detected, and the other end is respectively connected to two input ends of the voltage comparison module after being assembled into two relay groups;

[0007] The output end of the power comparison module is electrically connected to the control display center, and the control display center is electrically connected to the automatic gating module.

[0008] Furthermore, the automatic gating module is also configured with a displacement memory, a photoelectric coupler, and a Darlington tube driver connected in series in sequence. The displacement memory is electrically connected to the control display center and is used to receive an 8-bit binary coded signal of the control relay group energized in serial form from the control display center; the Darlington tube driver is respectively connected to the driving control between each relay in the first relay group and the second relay group.

[0009] Furthermore, the voltage comparison module is configured with a voltage comparator, and the voltage comparison module is configured with a voltage comparator, and the voltage comparison circuit of the voltage comparator includes two voltage-dividing resistors and a reference resistor; after the two voltage-dividing resistors are connected in series, one end is connected to the positive pole of the power supply and the other end is connected to the power ground, and a wire is led out from the series connection to be connected to the inverting end of the voltage comparator; one end of the reference resistor is connected to the positive pole of the power supply, and the other end is connected to a number of relays corresponding to the first warp yarn detection group in the sensing fabric whose conduction state is to be detected, and the second warp yarn detection group in the sensing fabric whose conduction state is to be detected is connected to the power ground through the corresponding number of relays.

[0010] Furthermore, the control display center includes a microcontroller and an output display terminal, and the microcontroller is electrically connected to the voltage comparator and the displacement memory respectively.

[0011] Further, the sensing fabric comprises:

[0012] The main fabric area is provided with a plurality of non-conductive warp yarns and non-conductive weft yarns interlaced vertically and horizontally, and a plurality of conductive weft yarns parallel to the non-conductive weft yarns are evenly spaced in the longitudinal direction of the warp yarns, the conductive weft yarns are divided into a plurality of weft yarn detection groups, and each of the weft yarn detection groups contains a plurality of minimum detection units consisting of two adjacent conductive weft yarns;

[0013] A side fabric edge area is arranged on at least one side of the main fabric area along the depth direction of the warp yarns, and is provided with two groups of first warp yarn detection groups and second warp yarn detection groups which are woven in parallel with each other and respectively consist of a plurality of conductive warp yarns;

[0014] The conductive warp yarns of the first warp yarn detection group are electrically connected with a conductive weft yarn in each minimum detection unit of the corresponding plurality of weft yarn detection groups in sequence along the depth direction at the same interlacing step frequency, and the interlacing step frequency is equal to the number of conductive warp yarns in the second warp yarn detection group;

[0015] The plurality of conductive warp yarns of the second warp yarn detection group correspond one-to-one with the single weft yarn detection group corresponding to each group of the interlacing step frequency in sequence along the depth direction, and are electrically conductive with another conductive weft yarn in each minimum detection unit of the weft yarn detection group;

[0016] Each relay in the first relay group corresponds one-to-one to each conductive warp yarn in the first warp yarn detection group; each relay in the second relay group corresponds one-to-one to each conductive warp yarn in the second warp yarn detection group.

[0017] Further, the first warp yarn detection group of the side fabric edge area is configured with M conductive warp yarns; the second warp yarn detection group is configured with N conductive warp yarns;

[0018] The first conductive warp yarn of the first warp yarn detection group is respectively conductively connected to one conductive weft yarn of each minimum detection unit in the N weft yarn detection groups within the first interlacing step frequency, and the first conductive warp yarn of the second warp yarn detection group is respectively conductively connected to another conductive weft yarn of each minimum detection unit in the first weft yarn detection group within the first interlacing step frequency;

[0019] By analogy, the Mth conductive warp yarn of the first warp yarn detection group is respectively conductive with one conductive weft yarn of the K smallest detection units in the N weft yarn detection group within the Mth interlacing step frequency, and the Nth conductive warp yarn of the second warp yarn detection group is respectively conductive with another conductive weft yarn of the K smallest detection unit in the Nth weft yarn detection group within the Mth interlacing step frequency;

[0020] M*N weft yarn detection groups are arranged along the depth direction in the main fabric area, and each weft yarn detection group includes K minimum detection units, wherein M, N, and K are positive integers.

[0021] In a second aspect, the present invention provides a detection method of a leakage location detection system based on a sensing fabric as described in any one of the first aspects, comprising the following steps:

[0022] Step S1: All relays in the first relay group and the second relay group are simultaneously pulled in and turned on to detect in real time whether there is any trace leakage:

[0023] If yes, then proceed to steps S2 to S4 to perform leak location detection and determination; if no, then continue to cycle to detect whether there is any trace leak;

[0024] Step S2: using the microcontroller to send an eight-bit binary coded signal to the automatic gating module to control the gating of the Mth relay in the first relay group;

[0025] Step S3: using the automatic gating module to sequentially gate each relay in the second relay group, detecting the output voltage of the circuit between the conductive warps connected to the relays in the two relay groups through the voltage comparison module and determining the conduction state between the conductive warps;

[0026] Step S4: Repeat the operations of steps S1 to S2 until all relays in the first relay group and the second relay group are matched one by one, and judge the conduction state between the conductive warps according to the output voltage of the circuit between the conductive warps connected to each group of matched relays, and feedback the leakage location.

[0027] Furthermore, the microcontroller of the control display center sends out an 8-bit binary code in serial form, the shift register 74HC595 responds and converts the serial data into a parallel signal output, which is isolated and transmitted by the photoelectric coupler TPL521, and then amplified by the Darlington driver ULN2803, and then drives the corresponding relays in the first relay group and the second relay group to be energized.

[0028] Furthermore, the non-inverting terminal Vin+ of the LM393 chip of the voltage comparison module is connected to the signal to be measured. When the signal voltage is higher than the reference voltage of the inverting terminal Vin-, the VO output by the circuit is VCC; when the signal voltage Vin+ is lower than Vin-, the VO output by the circuit is 0V; the reference voltage Vin-=R2 / (R1+R2)*VCC=2 / 3VCC;

[0029] When the sensing fabric is completely dry and has no conductive liquid, the two conductive warp yarns to be detected, which are respectively connected to the corresponding relays in the first relay group and the second relay group, are not conductive, the resistance is infinite, the signal voltage Vin+ is VCC, which is greater than the reference voltage Vin-, and the circuit output VO of the voltage comparison module is VCC;

[0030] When there is conductive liquid on the sensing fabric, the two conductive warp yarns to be detected, which are respectively connected to the responding relays in the first relay group and the second relay group, are connected, generating a resistance below 500kΩ, and the signal voltage does not exceed 1 / 5VCC, which is lower than 2 / 3VCC of the reference voltage, and the circuit output VO is 0V.

[0031] Furthermore, the detection range of the conduction resistance caused by the conductive liquid between any two conductive warp yarns connected between the first relay group and the second relay group is 0-4MΩ.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The leakage positioning detection system and method based on the sensing fabric provided by the present invention can detect the occurrence of leakage in time and can also accurately locate the position where the leakage occurs through the coordinated use of the first relay group and the second relay group and the accurate detection of the voltage comparison module; through the specific circuit design, such as the use of the LM393 chip in the voltage comparison module and the configuration of the relay group, the system can detect leakage in a wide range and can respond to the resistance caused by liquid leakage ranging from a few ohms to several megohms; the system can automatically perform detection and display results, reduce manual intervention, and improve the intelligence level of the detection process; it can realize comprehensive monitoring of liquid leakage on the sensing fabric, not just single-point detection, and improve the detection coverage and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a block diagram of a leakage location detection system based on a sensor fabric according to an embodiment of the present invention.

[0035] Figure 2 The figure is a block diagram of a voltage comparison module provided according to an embodiment of the present invention.

[0036] Figure 3 The present invention is a flow chart of a detection method provided according to an embodiment of the present invention. Figure 4 It is a schematic diagram of a sensing fabric to be detected provided according to an embodiment of the present invention. DETAILED DESCRIPTION

[0037] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0040] Example

[0041] like Figure 1 As shown, an embodiment of the present invention provides a leakage location detection system based on a sensor fabric, including a control display center, an automatic gating module and a voltage comparison module;

[0042] The automatic gating module is provided with a first relay group and a second relay group respectively composed of a plurality of relays connected in parallel, one end of each relay in the first relay group and the second relay group is respectively connected to a conductive warp yarn of the sensing fabric whose conductive state is to be detected, and the other end is respectively connected to two input ends of the voltage comparison module after being assembled into two relay groups;

[0043] The output end of the power comparison module is electrically connected to the control display center, and the control display center is electrically connected to the automatic gating module.

[0044] In this embodiment, the automatic gating module is also configured with a displacement memory, a photocoupler, and a Darlington tube driver connected in series in sequence. The displacement memory is electrically connected to the control display center and is used to receive an 8-bit binary coded signal of the control relay group energized in serial form from the control display center; the Darlington tube driver is respectively connected to the driving control between each relay in the first relay group and the second relay group.

[0045] In this embodiment, the first relay group includes relays KA1, KA2, and KA3, and the second relay group includes relays KA3, KA4, and KA5.

[0046] like Figure 2 As shown, the voltage comparison module is equipped with a voltage comparator, and the voltage comparison circuit of the voltage comparator includes two voltage-dividing resistors R1 and R2, and a reference resistor R3. After the voltage-dividing resistors R1 and R2 are connected in series, one end is connected to the positive electrode Vcc of the power supply, and the other end is connected to the power ground (that is, the negative electrode of the power supply). R1 ​​and R2 are connected in series at the inverting terminal Vin- of the LM393 chip. At this time, the voltage obtained by Vin- is:

[0047]

[0048] The resistance between the warp yarns of the first warp yarn detection group and the warp yarns of the second warp yarn detection group of the sensing fabric is set to R4, and the reference resistors R3 and R4 are connected in series. Similarly, a wire is drawn from the series connection to the in-phase terminal Vin+ of the LM393 chip. At this time, the voltage obtained by Vin+ is:

[0049]

[0050] Figure 2 The working principle of the circuit is that when Vin+ is greater than Vin-, the VO output by the circuit is VCC; when Vin+ is less than Vin-, the VO output by the circuit is 0. The voltage divider resistors R1 and R2 take a suitable value, such as R1 = 2MΩ, R2 = 4MΩ, then Vin- = 2 / 3Vcc. When the sensing fabric is completely dry and there is no conductive liquid, the two conductive warp yarns are disconnected, the resistor R4 is infinite, Vin+ is VCC, which is greater than 2 / 3Vcc of Vin-, and the VO output by the circuit is VCC; when there is conductive liquid on the fabric, the corresponding two conductive warp yarns are turned on, so that R4 is reduced to less than 0.5MΩ (500kΩ), Vin+ does not exceed 1 / 5VCC, which is less than 2 / 3Vcc of Vin-, and the VO output by the circuit is 0V. This voltage comparison circuit has a very wide detection capability. When the on-resistance caused by the conductive liquid is 0~4MΩ, the circuit can reliably detect it.

[0051] The control display center comprises a microcontroller and an output display terminal, and the microcontroller is electrically connected to the voltage comparator and the displacement memory respectively.

[0052] In this embodiment, the sensing fabric matched with the above detection system includes a main fabric area and a side fabric edge area.

[0053] The main fabric area is provided with a number of non-conductive warp yarns and non-conductive weft yarns interlaced vertically and horizontally, and a number of conductive weft yarns parallel to the non-conductive weft yarns are evenly spaced along the longitudinal direction of the warp yarns. The conductive weft yarns are divided into a number of weft yarn detection groups, and each weft yarn detection group contains a number of minimum detection units consisting of two adjacent conductive weft yarns.

[0054] The side fabric edge area is arranged on at least one side of the main fabric area along the longitudinal direction of the warp yarns, and is provided with two groups of first warp yarn detection groups and second warp yarn detection groups which are woven in parallel with each other and respectively consist of a plurality of conductive warp yarns;

[0055] The conductive warp yarns of the first warp yarn detection group are electrically connected with a conductive weft yarn in each minimum detection unit of the corresponding multiple weft yarn detection groups in sequence along the depth direction at the same interlacing step frequency, and the interlacing step frequency is equal to the number of conductive warp yarns in the second warp yarn detection group;

[0056] The conductive warp yarns of the second warp yarn detection group correspond to the single weft yarn detection group corresponding to each interlacing step frequency in sequence along the depth direction, and are electrically conductive with another conductive weft yarn in each minimum detection unit of the weft yarn detection group;

[0057] Each relay in the first relay group corresponds one-to-one to each conductive warp yarn in the first warp yarn detection group; each relay in the second relay group corresponds one-to-one to each conductive warp yarn in the second warp yarn detection group.

[0058] Specifically, the first warp yarn detection group in the side fabric edge area is configured with M conductive warp yarns; the second warp yarn detection group is configured with N conductive warp yarns;

[0059] The first conductive warp yarn of the first warp yarn detection group is respectively conductively connected to one conductive weft yarn of each minimum detection unit in the N weft yarn detection groups within the first interlacing step frequency, and the first conductive warp yarn of the second warp yarn detection group is respectively conductively connected to another conductive weft yarn of each minimum detection unit in the first weft yarn detection group within the first interlacing step frequency;

[0060] By analogy, the Mth conductive warp yarn of the first warp yarn detection group is respectively conductive with one conductive weft yarn of the K smallest detection units in the N weft yarn detection group within the Mth interlacing step frequency, and the Nth conductive warp yarn of the second warp yarn detection group is respectively conductive with another conductive weft yarn of the K smallest detection unit in the Nth weft yarn detection group within the Mth interlacing step frequency;

[0061] M*N weft yarn detection groups are arranged along the depth direction in the main fabric area, and each weft yarn detection group includes K minimum detection units, wherein M, N, and K are positive integers.

[0062] like Figure 4 As shown, the sensing fabric to be detected uses a first warp yarn detection group configured with 3 conductive warp yarns, numbered conductive warp yarns 1, 2, and 3 in the figure; the second warp yarn detection group is configured with 3 conductive warp yarns, numbered conductive warp yarns 4, 5, and 6 in the figure, a total of 3+3=6 conductive warp yarns. At the same time, the main fabric area is divided into 9 weft yarn detection groups along the warp yarn depth direction, namely weft yarn detection groups I to IX.

[0063] In the weft yarn detection group I, there are also several repeated minimum detection units. In this embodiment, two conductive weft yarns are set. The two conductive weft yarns of the detection unit are connected to the conductive warp yarns 1 and 4 respectively; in the subsequent weft yarn detection group II area, the two conductive weft yarns are connected to the conductive warp yarns 1 and 5 respectively; in the weft yarn detection group III area, the two conductive weft yarns are connected to the conductive warp yarns 1 and 6 respectively; in the weft yarn detection group IV area, the conductive weft yarns are connected to the conductive warp yarns 2 and 4 respectively; the remaining areas are shown in the figure.

[0064] In this embodiment, relay KA1 in the first relay group is connected in series with conductive warp yarn 1 in the first warp yarn detection group; relay KA2 in the first relay group is connected in series with conductive warp yarn 2 in the first warp yarn detection group; relay KA3 in the first relay group is connected in series with conductive warp yarn 3 in the first warp yarn detection group. Relay KA4 in the second relay group is connected in series with conductive warp yarn 4 in the second warp yarn detection group; relay KA5 in the second relay group is connected in series with conductive warp yarn 5 in the second warp yarn detection group; relay KA6 in the second relay group is connected in series with conductive warp yarn 6 in the second warp yarn detection group. In this embodiment, only the matching correspondence between 6 relays and 6 conductive warps is listed, which can be expanded to more in actual applications, and are not listed here one by one.

[0065] like Figure 3 As shown, the present invention provides a detection method of a leakage location detection system based on a sensing fabric as described in any one of the first aspects, comprising the following steps:

[0066] Step S1: All relays in the first relay group and the second relay group are simultaneously pulled in and turned on to detect in real time whether there is any trace leakage:

[0067] If yes, then proceed to steps S2 to S4 to perform leak location detection and determination; if no, then continue to cycle to detect whether there is any trace leak;

[0068] Step S2: using the microcontroller to send an eight-bit binary coded signal to the automatic gating module to control the gating of the Mth relay in the first relay group;

[0069] Step S3: using the automatic gating module to sequentially gate each relay in the second relay group, detecting the output voltage of the circuit between the conductive warps connected to the relays in the two relay groups through the voltage comparison module and determining the conduction state between the conductive warps;

[0070] Step S4: Repeat the operations of steps S2 to S3 until all relays in the first relay group and the second relay group are matched one by one, and judge the conduction state between the conductive warps according to the output voltage of the circuit between the conductive warps connected to each group of matched relays, and feedback the leakage location.

[0071] In this embodiment, the microcontroller controlling the display center sends out an 8-bit binary code in serial form, the shift register 74HC595 responds and converts the serial data into a parallel signal output, which is isolated and transmitted by the photocoupler TPL521, and then amplified by the Darlington driver ULN2803, and then drives the corresponding relays in the first relay group and the second relay group to be attracted.

[0072] The non-inverting terminal Vin+ of the LM393 chip of the voltage comparison module is connected to the signal to be measured. When the signal voltage is higher than the reference voltage of the inverting terminal Vin-, the circuit output VO is VCC; when the signal voltage Vin+ is lower than Vin-, the circuit output VO is 0V; the reference voltage Vin-=R2 / (R1+R2)*VCC=2 / 3VCC;

[0073] When the sensing fabric is completely dry and has no conductive liquid, the two conductive warp yarns to be detected, which are respectively connected to the corresponding relays in the first relay group and the second relay group, are not conductive, the resistance is infinite, the signal voltage Vin+ is VCC, which is greater than the reference voltage Vin-, and the circuit output VO of the voltage comparison module is VCC;

[0074] When there is conductive liquid on the sensing fabric, the two conductive warp yarns to be detected, which are respectively connected to the responding relays in the first relay group and the second relay group, are connected, generating a resistance below 500kΩ, and the signal voltage does not exceed 1 / 5VCC, which is lower than 2 / 3VCC of the reference voltage, and the circuit output VO is 0V.

[0075] In this embodiment, the detection range of the conduction resistance caused by the conductive liquid between any two conductive warp yarns connected between the first relay group and the second relay group is 0-4 MΩ.

[0076] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A leak location detection system based on sensor fabric, characterized in that: It includes a control display center, an automatic gating module and a voltage comparison module; The automatic gating module is provided with a first relay group and a second relay group respectively composed of a plurality of relays connected in parallel, one end of each relay in the first relay group and the second relay group is respectively connected to a conductive warp yarn of the sensing fabric whose conductive state is to be detected, and the other end is respectively connected to two input ends of the voltage comparison module after being assembled into two relay groups; The output end of the power comparison module is electrically connected to the control display center, and the control display center is electrically connected to the automatic gating module.

2. The leak location detection system based on sensor fabric according to claim 1, characterized in that: The automatic gating module is also configured with a displacement memory, a photoelectric coupler, and a Darlington tube driver connected in series in sequence. The displacement memory is electrically connected to the control display center and is used to receive an 8-bit binary coded signal of the control relay group energized in serial form from the control display center; the Darlington tube driver is respectively connected to the driving control between each relay in the first relay group and the second relay group.

3. The leak location detection system based on sensor fabric according to claim 2, characterized in that: The voltage comparison module is provided with a voltage comparator, and the voltage comparison circuit of the voltage comparator includes two voltage-dividing resistors and a reference resistor; after the two voltage-dividing resistors are connected in series, one end is connected to the positive electrode of the power supply and the other end is connected to the power ground wire, and a wire is led out from the series connection to be connected to the inverting end of the voltage comparator; one end of the reference resistor is connected to the positive electrode of the power supply, and the other end is connected to a plurality of relays corresponding to the first warp yarn detection group in the sensing fabric whose conduction state is to be detected, and the second warp yarn detection group in the sensing fabric whose conduction state is to be detected is connected to the power ground wire through the corresponding plurality of relays.

4. The leak location detection system based on sensor fabric according to claim 3 is characterized in that: The control display center comprises a microcontroller and an output display terminal, and the microcontroller is electrically connected to a voltage comparator and a displacement memory respectively.

5. The leak location detection system based on sensor fabric according to claim 3, characterized in that: The sensing fabric comprises: The main fabric area is provided with a plurality of non-conductive warp yarns and non-conductive weft yarns interlaced vertically and horizontally, and a plurality of conductive weft yarns parallel to the non-conductive weft yarns are evenly spaced in the longitudinal direction of the warp yarns, the conductive weft yarns are divided into a plurality of weft yarn detection groups, and each of the weft yarn detection groups contains a plurality of minimum detection units consisting of two adjacent conductive weft yarns; A side fabric edge area is arranged on at least one side of the main fabric area along the depth direction of the warp yarns, and is provided with two groups of first warp yarn detection groups and second warp yarn detection groups which are woven in parallel with each other and respectively consist of a plurality of conductive warp yarns; The conductive warp yarns of the first warp yarn detection group are electrically connected with a conductive weft yarn in each minimum detection unit of the corresponding plurality of weft yarn detection groups in sequence along the depth direction at the same interlacing step frequency, and the interlacing step frequency is equal to the number of conductive warp yarns in the second warp yarn detection group; The plurality of conductive warp yarns of the second warp yarn detection group correspond one-to-one with the single weft yarn detection group corresponding to each group of the interlacing step frequency in sequence along the depth direction, and are electrically conductive with another conductive weft yarn in each minimum detection unit of the weft yarn detection group; Each relay in the first relay group corresponds one-to-one to each conductive warp yarn in the first warp yarn detection group; each relay in the second relay group corresponds one-to-one to each conductive warp yarn in the second warp yarn detection group.

6. The leak location detection system based on sensor fabric according to claim 5, characterized in that: The first warp yarn detection group of the side fabric edge area is configured with M conductive warp yarns; the second warp yarn detection group is configured with N conductive warp yarns; The first conductive warp yarn of the first warp yarn detection group is respectively conductively connected to one conductive weft yarn of each minimum detection unit in the N weft yarn detection groups within the first interlacing step frequency, and the first conductive warp yarn of the second warp yarn detection group is respectively conductively connected to another conductive weft yarn of each minimum detection unit in the first weft yarn detection group within the first interlacing step frequency; By analogy, the Mth conductive warp yarn of the first warp yarn detection group is respectively conductive with one conductive weft yarn of the K smallest detection units in the N weft yarn detection group within the Mth interlacing step frequency, and the Nth conductive warp yarn of the second warp yarn detection group is respectively conductive with another conductive weft yarn of the K smallest detection unit in the Nth weft yarn detection group within the Mth interlacing step frequency; M*N weft yarn detection groups are arranged along the depth direction in the main fabric area, and each weft yarn detection group includes K minimum detection units, wherein M, N, and K are positive integers.

7. A detection method for a leakage location detection system based on a sensor fabric according to any one of claims 1 to 6, characterized in that: The steps include: Step S1: All relays in the first relay group and the second relay group are simultaneously pulled in and turned on to detect in real time whether there is any trace leakage: If yes, then proceed to steps S2 to S4 to perform leak location detection and judgment; if no, then continue to cycle to detect whether there is any trace leakage; Step S2: using the microcontroller to send an eight-bit binary coded signal to the automatic gating module to control the gating of the Mth relay in the first relay group; Step S3: using the automatic gating module to sequentially gate each relay in the second relay group, detecting the output voltage of the circuit between the conductive warps connected to the relays in the two relay groups through the voltage comparison module and determining the conduction state between the conductive warps; Step S4: Repeat the operations of step S1 to step S2 until all relays in the first relay group and the second relay group are matched one by one, and the conduction state between the conductive warps is judged according to the output voltage of the circuit between the conductive warps connected to each group of matched relays, and the leakage location is fed back.

8. The detection method of the leakage location detection system based on the sensor fabric according to claim 7 is characterized in that: The microcontroller of the control display center sends out 8-bit binary code in serial form, and the displacement buffer 74HC595 responds and converts the serial data into parallel signal output, which is isolated and transmitted by the photoelectric coupler TPL521, and then amplified by the Darlington driver ULN2803, and then drives the corresponding relays in the first relay group and the second relay group to be attracted.

9. The detection method of the leakage location detection system based on the sensor fabric according to claim 8, characterized in that: The non-inverting terminal Vin+ of the LM393 chip of the voltage comparison module is connected to the signal to be measured. When the signal voltage is higher than the reference voltage of the inverting terminal Vin-, the VO output by the circuit is VCC; when the signal voltage Vin+ is lower than Vin-, the VO output by the circuit is 0V; the reference voltage Vin-=R2 / (R1+R2)*VCC=2 / 3VCC; When the sensing fabric is completely dry and has no conductive liquid, the two conductive warp yarns to be detected, which are respectively connected to the corresponding relays in the first relay group and the second relay group, are not conductive, the resistance is infinite, the signal voltage Vin+ is VCC, which is greater than the reference voltage Vin-, and the circuit output VO of the voltage comparison module is VCC; When there is conductive liquid on the sensing fabric, the two conductive warp yarns to be detected, which are respectively connected to the responding relays in the first relay group and the second relay group, are connected, generating a resistance below 500kΩ, and the signal voltage does not exceed 1 / 5VCC, which is lower than 2 / 3 VCC of the reference voltage, and the circuit output VO is 0V.

10. The detection method of the leakage location detection system based on the sensor fabric according to claim 9, characterized in that: The detection range of the conduction resistance caused by the conductive liquid between any two conductive warp yarns connected between the first relay group and the second relay group is 0-4MΩ.

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