Sewage detection method

Abstract

The invention relates to sewage detection, and particularly provides a sewage detection method, which comprises a sampling stage and a detection stage, the sampling stage comprises the following steps: (S1) establishing connection between a mobile terminal and sampling equipment, and opening a sampling chamber; (S2) placing a sampling bottle with an electronic tag in the sampling chamber by an operator, and closing the sampling chamber; (S3) sampling equipment collects sewage according to a set sampling mode, and the sewage enters the sampling bottle; and (S4) after sampling is completed, opening the sampling chamber, and taking out the sampling bottle. The anti-cheating device has the advantages of good anti-cheating effect and the like, and is applied to various sewage detection.

Description

Technical Field

[0001] The invention relates to sewage detection, and in particular to a sewage detection method with an anti-cheating function. Background Art

[0002] The concept of sewage epidemiology was first proposed by the United States in 2001. Its principle is based on the fact that after a drug is taken by the body, the unabsorbed part and the metabolites of the active ingredients will eventually enter the sewage through the sewage system with urine and feces. Sewage epidemiology was first applied in Italy in 2005. Subsequently, Europe and the United States also gradually applied sewage epidemiological analysis methods to the monitoring of drug abuse.

[0003] Recently, many cities in my country have carried out toxic monitoring methods based on sewage epidemiology. This method mainly measures the concentration of target substances in the inlet and outlet water of municipal sewage. Through the monitoring of toxicity in sewage, data support can be provided for the precise crackdown on illegal and criminal activities.

[0004] During sewage sampling, transportation and testing, in order to maintain the authenticity of the sampled sewage, it is necessary to ensure that the sampling bottle is sampled normally but cannot be opened illegally. Summary of the invention

[0005] In order to solve the deficiencies in the above-mentioned prior art solutions, the present invention provides a sewage detection method.

[0006] The objective of the present invention is achieved through the following technical solutions: A sewage detection method comprises the following steps: (S1) establishing a connection between the mobile terminal and the sampling device, and opening the sampling chamber; (S2) An operator places a sampling bottle with an electronic tag in the sampling chamber and closes the sampling chamber; (S3) The sampling device collects sewage according to the set sampling mode, and the sewage enters the sampling bottle; (S4) After the sampling is completed, the sampling chamber is opened and the sampling bottle is taken out.

[0007] Compared with the prior art, the present invention has the following beneficial effects: 1. It has anti-cheating function; During the sampling process, a connection is established between the mobile terminal and the sampling device. Operations can only be performed on the mobile terminal to legally open the sampling chamber, put in and take out the sampling bottles with electronic tags, and ensure real sampling, such as ensuring that the sampling chamber is locked and the sampling head is placed in water; Use camera units to monitor the inside and outside of sampling equipment in real time to prevent cheating; An anti-cheating sampling bottle is designed. The design of the elastic member and the limit groove is used so that when the moving member moves up and down, the end of the elastic member moves in multiple parts of the limit groove and deforms, and the end finally stops in the third part. When the moving member is pushed, the end in the third part is blocked, preventing the end and the moving member from moving down, preventing the fluid valve from being opened again, and realizing the anti-cheating function. 2. Simple structure and good reliability; The moving parts, positioning grooves and positioning parts are all mature components with simple structure and good reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The disclosure of the present invention will become easier to understand with reference to the accompanying drawings. It is easy for those skilled in the art to understand that these drawings are only used to illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention. In the drawings: Figure 1 is a schematic flow chart of a sewage detection method according to an embodiment of the present invention; Figure 2 is a schematic diagram of the structure of a sampling bottle according to an embodiment of the present invention; Figure 3-Figure 4 is a schematic structural diagram of a bottle cap according to an embodiment of the present invention; Figure 5 is a schematic structural diagram of a housing according to an embodiment of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the bottle cap in different states; Figure 7-Figure 10 It is a schematic diagram of the position of the limit groove and the end of the elastic member under different states. DETAILED DESCRIPTION

[0009] Figure 1-Figure 10 The following description describes optional specific embodiments of the present invention to teach those skilled in the art how to implement and reproduce the present invention. In order to teach the technical solution of the present invention, some conventional aspects have been simplified or omitted. Those skilled in the art will understand that variations or replacements derived from these specific embodiments will be within the scope of the present invention. Those skilled in the art will understand that the following features can be combined in various ways to form multiple variations of the present invention. Thus, the present invention is not limited to the following optional specific embodiments, but is only limited by the claims and their equivalents.

[0010] Example 1

[0011] A sewage detection method, such as Figure 1 As shown, it includes a sampling stage and a detection stage, and the sampling stage includes the following steps: (S1) establishing a connection between the mobile terminal and the sampling device, and opening the sampling chamber; (S2) An operator places a sampling bottle with an electronic tag in the sampling chamber and closes the sampling chamber; (S3) The sampling device collects sewage according to the set sampling mode, and the sewage enters the sampling bottle; (S4) After the sampling is completed, the sampling chamber is opened and the sampling bottle is taken out.

[0012] In order to realize sewage detection, further, Figure 1 As shown, the detection phase includes the following steps: (S5) The testing personnel confirm the integrity of the sampling bottle, identify the electronic tag, open the sampling bottle, and test the sewage; (S6) Uploading sewage information and electronic tag information, and establishing a corresponding relationship between sampling information and sewage information, wherein the sampling information includes a sampling location.

[0013] In order to controllably open the sampling device, further, in step (S1), the connection is established in the following manner: The operator uses the mobile terminal to scan the device code on the sampling device, or, if the device code has been scanned before, directly establishes a connection between the mobile terminal and the sampling device.

[0014] In order to controllably open the sampling device, further, in step (S1), operating on the mobile terminal, the sampling chamber is opened; In step (S2), the sampling chamber is automatically closed and locked. If the locking fails, a message is sent to the mobile terminal to prompt the user to lock the chamber again.

[0015] To ensure accurate sampling, further, in step (S3), the operator places the sampling head into the water, and the sampling device detects whether the sampling head is placed in the water. If unsuccessful, a message is sent to the mobile terminal to prompt the operator to repeat the operation.

[0016] In order to set the sampling mode, further, in step (S3), the operator sets the sampling mode on the mobile terminal and transmits it to the sampling device and the cloud.

[0017] In order to track the sampling bottle, further, in step (S3), the sampling device identifies the electronic tag of the sampling bottle, and continuously detects the electronic tag during the sampling process. If an abnormality is detected in the electronic tag, an alarm is issued.

[0018] In order to prevent cheating in sampling, a single camera head is further used to monitor the exterior and external status of the sampling equipment.

[0019] In order to achieve anti-cheating functions, such as Figure 2 As shown, the sampling bottle includes: The outer wall of the opening end of the bottle body 201 has a second connecting portion; The inner wall of the bottle cap 200 has a first connection portion, and the bottle cap 200 is fixed to the open end by matching the first connection portion with the second connection portion.

[0020] like Figure 3-Figure 4 As shown, the bottle cap 200 comprises: The outer shell 101 and the anti-theft ring 11 are connected up and down, and the inner wall of the outer shell 101 has a first connecting part, such as an internal thread.

[0021] like Figure 5 As shown, the annular isolating portion 100 is arranged on the inner wall of the housing 101 .

[0022] A fluid valve is provided on the isolation portion 100 and is used to control whether two sides of the isolation portion 100 are connected.

[0023] A plurality of elastic members 105 are respectively connected to the moving members 104 of the fluid valve.

[0024] like Figure 5 As shown, a plurality of limiting grooves 210 are arranged on the inner wall of the housing 101, and the end of the elastic member 105 is arranged in the limiting groove 210; the limiting groove 210 includes a first part 211, a second part 212 and a third part 213 which are connected in sequence. When the moving member 104 moves downward, the two sides of the isolation part 100 are connected, and the end moves downward in the first part 211. When the movable member 104 moves upward, the end portion enters the second portion 212 from the first portion 211 and moves upward, the deformation of the elastic member 105 increases, and finally the two sides of the isolation portion 100 are isolated; while the end portion moves upward and / or downward, the projection of the trajectory of the end portion on a plane perpendicular to the central axis of the outer shell 101 rotates counterclockwise around the central axis, and the projection of the trajectory of the end portion in the third portion 213 on a plane perpendicular to the central axis of the outer shell 101 rotates clockwise around the central axis, and the deformation of the elastic member 105 decreases.

[0025] The blocking portion is used to block the downward movement of the end portion in the third portion 213, that is, to stop the downward movement of the moving member 104, thereby preventing the fluid valve from being opened again and eliminating sample cheating.

[0026] In order to realize the conduction and closing functions, further, as Figure 5-Figure 6 As shown, the fluid valve also includes: A plurality of guide grooves 107 are disposed on the inner wall of the housing 101 and extend in a direction parallel to the central axis of the housing 101 or in a spiral shape.

[0027] The moving member 104 passes through the isolation portion 100 , and the upper end 109 and the lower end 108 are respectively located at two sides of the isolation portion 100 ; the sealing member 102 is disposed between the isolation portion 100 and the lower end 108 .

[0028] One end of the plurality of guide members 106 is disposed in the guide groove 107 , and the other end is connected to the moving member 104 . The spring 103 is disposed between the isolation portion 100 and the guide member 106 .

[0029] In order to prevent the elastic member from being moved to achieve the anti-cheating function, further, as Figure 6 As shown, the elastic member 105 is disposed between the guide member 106 and the isolation portion 100 , and is blocked by the upper end 106 of the moving member 104 .

[0030] In order to connect the two sides of the isolation part 100 as needed, further, as Figure 3 As shown, the moving member 104 is a cylindrical structure with an open upper end 109 and a closed lower end 108 , and a side wall having a through hole. Alternatively, the moving member 104 is a columnar structure with a gap between the side wall and the isolation portion 100 .

[0031] In order to prevent the end portion at the intersection of the first portion 311 and the second portion 312 from returning to the first portion 311 when moving upward, further, as Figure 6 As shown, the top wall 215 and the bottom wall 216 at the intersection are respectively arranged in a counterclockwise direction.

[0032] In order to prevent the inner end of the third part 213 from moving downward, the blocking part further adopts a groove 214, which is arranged in the third part 213 and is located at the lower side of the end; or, the third part arranged horizontally or inclined downward is used as the blocking part.

[0033] During the sampling process, the sampling bottle works as follows: (A1) In the sampling device, the moving part 104 of the fluid valve is pressed downward by a component, the two sides of the isolation part 100 are connected, and the fluid passes through the isolation part 100 and enters the bottle body 201; When the moving member 104 moves downward, the end of the elastic member 105 moves downward in the first portion 211 of the limiting groove 210 and reaches the lowest end. Figure 8 As shown; (A2) The moving member 104 moves upward, and at the same time, the end portion moves upward in the second portion 212 of the limiting groove 210. The projection of the trajectory of the end portion on a plane perpendicular to the central axis of the housing 101 rotates counterclockwise around the central axis, and the deformation of the elastic member 105 increases until the fluid valve closes the isolation portion 100. Fig. 9 shown.

[0034] (A3) The end portion enters the third portion 213 from the second portion 212, and the projection of the trajectory of the end portion in the third portion 213 on a plane perpendicular to the central axis of the housing 101 rotates clockwise around the central axis, and the deformation of the elastic member 105 decreases, such as Fig.10 shown.

[0035] When the outside pushes the moving member 104, the end is blocked by the blocking portion, preventing the moving member 104 from moving downward, thereby preventing the fluid valve from being opened again.

[0036] Example 2

[0037] An application example of the sewage detection method according to embodiment 1 of the present invention.

[0038] In this application example, Figure 2 As shown, the bottle cap 200 is fixed at the open end of the bottle body 201, and the internal thread of the inner wall of the bottle cap 200 is engaged with the external thread of the outer wall of the open end, thereby closing the open end.

[0039] like Figure 3-Figure 4 As shown, the housing 101 and the anti-theft ring 11 are connected up and down.

[0040] like Figure 5 As shown, the annular isolating portion 100 is fixed to the inner wall of the housing 101. Two limiting grooves 210 are respectively arranged between adjacent guide grooves 107, including a first portion 211, a second portion 212 and a third portion 213 which are connected in sequence. The first portion 211 and the second portion 212 are both inclined (relative to the horizontal plane) to form a V shape. The top wall 215 and the bottom wall 216 at the intersection are respectively arranged in the counterclockwise direction, as shown in FIG. Figure 6 The third part 213 is arranged horizontally, and a groove 214 is arranged at the lower side of the end thereof as a blocking part.

[0041] The outer diameter of the hollow moving member 104 is equal to the inner diameter of the isolating portion 100. The upper end 109 of the moving member 104 is open, and the outer wall has four convex guide members 106. The side wall of the moving member 104 is hollowed out, and the lower end 108 is closed. Four guide grooves 107 are arranged on the inner wall of the shell 101 and extend in a direction parallel to the central axis of the shell 101. One end of the guide member 106 is arranged in the guide groove 107, so that the moving member 104 can only translate in a direction parallel to the central axis of the shell 101.

[0042] like Figure 6 As shown, the moving member 104 passes through the isolation part 100, and the sealing member 102 is an O-ring, which is arranged between the lower end 108 and the isolation part 100. The spring 103 is arranged on the upper side of the isolation part 100 and is between the elastic member 105 and the isolation part 100. The elastic member 105 is a spring rod, which passes through the moving member 104 and is blocked by the upper end 109.

[0043] A sewage detection method of this embodiment, such as Figure 1 As shown, it includes a sampling stage and a detection stage, and the sampling stage includes the following steps: (S1) Establishing a connection between the mobile terminal and the sampling device: The operator uses the WeChat applet of the mobile terminal (such as a mobile phone) to scan the device code on the sampling device, or, if the device code has been scanned before, directly establishes a connection between the mobile terminal and the sampling device.

[0044] The operator unlocks and opens the door of the sampling equipment storage room through the WeChat mini program.

[0045] (S2) The operator places the sampling bottle with the electronic tag in the sampling chamber and closes the sampling chamber.

[0046] The operator closes the sample storage room of the sampling equipment, seals the sampling device, and the electronic lock is automatically locked. The equipment automatically provides feedback that the electronic lock is locked in place. If the lock is not successful, the WeChat applet prompts you to re-lock it until it is successfully locked.

[0047] The operator throws the sampling head of the sampling tube into the water sample to be collected. The sampling equipment automatically detects whether the sampling head has been thrown into the water sample. If it is not successfully thrown into the water sample, a prompt will be displayed in the WeChat applet until it is successfully thrown into the water sample.

[0048] (S3) The operator selects the sampling mode of the sampling device through the WeChat applet, including information such as sampling time and sampling volume.

[0049] After the sampling mode is determined, the operator starts the sampling device through the WeChat applet.

[0050] After the sampling equipment is started, the built-in RFID module automatically confirms and records the electronic tag number of the sampling bottle (one bottle, one code, and the generated record will be uploaded to the cloud), and continuously detects the electronic tag number of the sampling bottle during the entire sampling process to prevent the sampling bottle from being replaced in the middle. If the electronic tag number is confirmed to be correct, water sampling will be carried out, otherwise an alarm will be prompted.

[0051] The sampling device collects sewage according to the set sampling mode, and the sewage enters the sampling bottle.

[0052] (S4) After the sampling is completed, the operator uses the WeChat applet to open the sampling chamber and remove the self-sealing sampling bottle. The self-sealing sampling bottle is automatically sealed and cannot be opened a second time. The sampling chamber is then closed. The specific method of opening and closing is the same as the previous steps.

[0053] The operator carries the sampling bottle for inspection.

[0054] (S5) The inspector checks whether there are any signs of damage to the sampling bottle. If everything is normal, the electronic tag number of the sampling bottle is identified, the bottle cap is rotated, and the anti-theft ring is removed, that is, the sampling bottle is destructively opened, the sewage is tested, and the sewage information is obtained.

[0055] (S6) Uploading sewage information and electronic tag information, and establishing a corresponding relationship between sampling information and sewage information, wherein the sampling information includes a sampling location, that is, the location of the sampling equipment.

[0056] The working mode of the sampling bottle of the embodiment of the present invention during sampling is as follows: (A1) The end of the elastic member 105 is at the highest point in the first portion 211, as shown in FIG. Figure 7 shown.

[0057] The upper end 109 of the moving member 104 of the fluid valve is pressed downward, and the guide member 106 moves vertically downward along the guide groove 107, the spring 103 is compressed, and at the same time, the end of the elastic member 105 moves obliquely downward along the first portion 211 and rotates counterclockwise (the projection of the trajectory of the end on the plane perpendicular to the central axis of the housing 101 rotates counterclockwise around the central axis), the deformation of the end gradually decreases, the fluid valve opens, and a certain amount of sewage passes through the moving member 104 and the isolation portion 100 and enters the bottle body 201 until the end reaches the bottom wall 216 of the intersection, as shown in FIG. Figure 8 As shown, at this time, the deformation of the elastic member 101 is zero.

[0058] (A2) The external force is removed. Under the push of the elastic force of the spring 103, the movable member 104 moves vertically upward, and the guide member 106 moves vertically upward along the guide groove 107. At the same time, (based on the position design of the top wall 215 and the bottom wall 216 at the intersection, the end portion will not return to the first part 211, but will enter the second part 212) the end portion enters the second part 212 from the first part 211 in the limiting groove 210, and moves upward obliquely in the second part 212, and rotates counterclockwise (same as the counterclockwise rotation in the first part 211), and the deformation amount gradually increases until the sealing member 102 is squeezed between the lower end 108 and the isolation part 100, and the fluid valve closes the isolation part 100, as shown in FIG. Fig. 9 As shown, at this time, the deformation of the end is the largest; (A3) The end portion enters the third portion 213 and rotates clockwise (the projection of the trajectory of the end portion on a plane perpendicular to the central axis of the housing 101 rotates clockwise around the central axis), the deformation amount decreases, and is finally blocked by the end of the third portion 213, as shown in FIG. Fig.10 As shown; When the external environment pushes the moving member 104, the end is blocked by the groove 214, preventing the moving member 104 from moving downward and preventing the fluid valve from being opened again.

[0059] Example 3

[0060] The application example of the sewage detection method according to embodiment 1 of the present invention is different from embodiment 2 in that: 1. The moving part is a solid structure, and the side wall has a groove extending in a direction parallel to the central axis of the shell. There is a gap between the upper end of the moving part and the inner wall of the shell. When the moving part moves downward, the sewage passes through the gap and then through the groove on the side wall into the bottle body.

[0061] 2. The first part is arranged parallel to the central axis of the housing, and the second part is inclined relative to the central axis (horizontal plane). The top wall and the bottom wall at the intersection of the first part and the second part are arranged in a clockwise direction.

[0062] The third part is tilted relative to the horizontal plane, and when the end rotates clockwise in the third part, the distance between the end and the isolation portion becomes smaller. When the moving member is pushed, the end is blocked by the bottom wall of the third part, that is, the tilted setting of the third part plays the role of the blocking part.

[0063] When the moving member moves downward, the two sides of the isolation portion are connected, and the end portion moves vertically downward in the first portion (without rotation) until the lowest end, and the deformation amount of the elastic member remains unchanged and is not zero.

[0064] When the moving part moves upward, due to the elastic force of the elastic part, the end portion enters the second portion from the first portion and moves upward, and the deformation of the elastic part gradually decreases to zero and then gradually increases. When the end portion moves to the highest end in the second portion, the deformation is the largest, and the two sides of the isolation portion are isolated; while the end portion moves upward, the projection of the trajectory of the end portion on the plane perpendicular to the central axis of the housing rotates counterclockwise around the central axis.

[0065] Under the action of the elastic force of the elastic member, the end portion enters the third portion from the second portion, and the projection of the trajectory of the end portion in the third portion on a plane perpendicular to the central axis of the shell rotates clockwise around the central axis, the deformation of the elastic member decreases, and at the same time, the end portion moves downward.

[0066] Example 4

[0067] The application example of the sewage detection method according to embodiment 1 of the present invention is different from embodiment 2 in that: The guide groove is spiral and non-parallel to the first part and the second part, so that when the moving part moves up and down, the end part in the limiting groove rotates and deforms.

Claims

1. A sewage detection method, comprising a sampling phase and a detection phase, wherein the sampling phase comprises the following steps: (S1) establishing a connection between the mobile terminal and the sampling device, and opening the sampling chamber; (S2) An operator places a sampling bottle with an electronic tag in the sampling chamber and closes the sampling chamber; (S3) The sampling device collects sewage according to the set sampling mode, and the sewage enters the sampling bottle; (S4) After the sampling is completed, the sampling chamber is opened and the sampling bottle is taken out.

2. The sewage detection method according to claim 1, characterized in that: The detection phase includes the following steps: (S5) The testing personnel confirm the integrity of the sampling bottle, identify the electronic tag, open the sampling bottle, and test the sewage; (S6) Uploading sewage information and electronic tag information, and establishing a corresponding relationship between sampling information and sewage information, wherein the sampling information includes a sampling location.

3. The sewage detection method according to claim 1, characterized in that: In step (S1), the connection is established in the following manner: The operator uses the mobile terminal to scan the device code on the sampling device, or, if the device code has been scanned before, directly establishes a connection between the mobile terminal and the sampling device.

4. The sewage detection method according to claim 1, characterized in that: In step (S1), operating on the mobile terminal to open the sampling chamber; In step (S2), the sampling chamber is automatically closed and locked. If the locking fails, a message is sent to the mobile terminal to prompt the user to lock the chamber again.

5. The sewage detection method according to claim 1, characterized in that: In step (S3), the operator places the sampling head into the water, and the sampling device detects whether the sampling head is placed in the water. If unsuccessful, a message is sent to the mobile terminal to prompt the operator to repeat the operation.

6. The sewage detection method according to claim 1, characterized in that: In step (S3), the operator sets the sampling mode on the mobile terminal and transmits it to the sampling device and the cloud.

7. The sewage detection method according to claim 1, characterized in that: In step (S3), the sampling device identifies the electronic tag of the sampling bottle, and continuously detects the electronic tag during the sampling process. If an abnormality is detected in the electronic tag, an alarm is issued.

8. The sewage detection method according to claim 1, characterized in that: Use a single camera head to monitor the external and internal status of the sampling equipment.

9. The sewage detection method according to claim 1, characterized in that: The sampling bottle comprises a bottle body and a bottle cap, the bottle cap is fixed to the open end of the bottle body, the outer wall of the open end has a second connecting portion; the bottle cap comprises an outer shell and an anti-theft ring, the inner wall of the outer shell has a first connecting portion matching the second connecting portion; the bottle cap also comprises: An isolating portion, the isolating portion being annular and arranged on the inner wall of the shell; A fluid valve, the fluid valve is arranged on the isolation part and is used to control whether the two sides of the isolation part are connected; An elastic member, wherein the plurality of elastic members are respectively connected to the moving member of the fluid valve; A limiting groove, wherein a plurality of limiting grooves are arranged on the inner wall of the shell, and the end of the elastic member is arranged in the limiting groove; the limiting groove comprises a first part, a second part and a third part which are connected in sequence, when the moving member moves downward, the two sides of the isolation part are connected, and the end moves downward in the first part, and when the moving member moves upward, the end enters the second part from the first part and moves upward, the deformation amount of the elastic member increases, and finally the two sides of the isolation part are isolated; when the end moves upward and / or downward, the projection of the trajectory of the end on a plane perpendicular to the central axis of the shell rotates counterclockwise around the central axis, and the projection of the trajectory of the end in the third part on a plane perpendicular to the central axis of the shell rotates clockwise around the central axis, and the deformation amount of the elastic member decreases; The blocking portion is used to block the end portion in the third portion from moving downward.

10. The sewage detection method according to claim 9, characterized in that: The first part and the second part are V-shaped, and the third part is arranged horizontally or inclined downward.

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