A HPLC signal isolation device and method for solving carrier crosstalk problem

Abstract

An HPLC signal isolation device and method for solving the carrier crosstalk problem, which performs on-site measurement and collection through acquisition equipment; transmits on-site measurement and collected information through communication channels and transmits it to the main station of the acquisition system; receives the collected information through the main station of the acquisition system, and realizes system data interaction, storage and acquisition business process management. The present invention shields the signals of CCO and STA through a shielding box to improve the shielding effect.

Description

Technical Field

[0001] The invention belongs to the technical field of communication testing, and in particular relates to an HPLC signal isolation device and method for solving the problem of carrier crosstalk. Background Art

[0002] HPLC is high-speed power line carrier, also known as broadband power line carrier, which is a broadband power line carrier technology for data transmission on low-voltage power lines.

[0003] Chinese patent CN114221676A "A HPLC smart meter advanced function detection platform" provides an HPLC smart meter advanced function detection platform, which consists of an electricity information collection system, a meter end and a detection platform. The electricity information collection system includes a main station, a communication unit and a collection end. The main station is connected to the collection end through the communication unit. The collection end establishes a connection with the meter end through the power line built by the detection platform to realize HPLC communication, so that the results of HPLC deepening application functions are displayed on the main station. It is closer to the actual business scenario of HPLC, solves the problem of testing HPLC with a single detection software, and can simultaneously support local terminal access connection collection main station simulation debugging and substation topology environment simulation, that is, connection collection main station simulation debugging and substation topology environment simulation can be carried out simultaneously, which is used to efficiently carry out HPLC product laboratory capability testing and HPLC business function simulation verification.

[0004] The above-mentioned detection platform can be used to efficiently carry out laboratory capability testing of HPLC products and simulation verification of HPLC business functions. In the laboratory environment test, it was found that when the central controller (CCO) interacts with the workstation (STA), the use of simple shielding methods such as copper foil and tin foil cannot achieve the spatial shielding effect of the signal. This is clearly reflected in the sensitivity test items of the equipment. Using the above shielding method, no matter how the carrier is isolated, the sensitivity test attenuation capability of the equipment under test has no upper limit. Summary of the invention

[0005] In order to solve the deficiencies in the prior art, the present invention provides an HPLC signal isolation device and method for solving the carrier crosstalk problem. On-site measurement and collection are performed through acquisition equipment; on-site measurement and collected information are transmitted through communication channels and transmitted to the acquisition system master station; the collected information is received through the acquisition system master station, and system data interaction, storage and acquisition business process management are realized. The present invention shields the signals of CCO and STA through a shielding box to improve the shielding effect.

[0006] The present invention adopts the following technical solution.

[0007] An HPLC signal isolation device for solving the carrier crosstalk problem comprises a box body, a cover body, a cover push assembly, and a connecting mechanism, wherein the cover body is rotatably connected to the upper and lower ends of the box body, the cover push assembly is connected to both sides of the box body, and the connecting mechanism is connected to the cover body and the box body;

[0008] The connection mechanism includes a groove and a convex block; the groove is arranged on the upper and lower surfaces of the box body, the convex block is installed on the surface of the cover body close to the box body, and the convex block is embedded in the groove body of the groove; the groove and the convex block are both made of metal, and there is a negative pressure between them, so as to enhance the tightness of the connection between the convex block and the groove body;

[0009] The cover push assembly comprises a first rotating head, a second rotating head and a cylinder; the first rotating head and the second rotating head are rotatably connected with the cover body through a rotating shaft, and the cylinder is installed between the first rotating head and the second rotating head.

[0010] The cover body at the top is pushed open by the cylinder in the cover pushing assembly, so that the user can place the instrument. In this process, since there are two cover bodies, the tester's concerns about the direction of the shielding box are reduced, thereby improving the test efficiency.

[0011] The piston rod of the cylinder is extended and retracted to drive the rotating head to move. Since the rotating head is installed on the cover body, the cover body is automatically opened by pushing the cover body, so that the user can place the instrument in the box to achieve spatial shielding of CCO and STA signals.

[0012] The connecting mechanism also includes a vacuum tube passing through the box shell, and vacuum heads are installed at both ends of the vacuum tube, and the vacuum head is embedded in the groove body of the groove; after negative pressure is generated inside the vacuum tube, the vacuum tube is connected to the vacuum head, so that negative pressure is generated inside the vacuum head, and the vacuum head with negative pressure inside makes negative pressure between the groove and the protrusion, thereby strengthening the tightness of the connection between the protrusion and the groove body. The groove and the protrusion are both made of metal, so after tight connection, the leakage problem of the shielding box is reduced, and the shielding ability is enhanced by the groove and the protrusion assembled together.

[0013] The push cover assembly also includes a vacuum pump installed on the outside of the cylinder, the piston rod of the vacuum pump is connected to the piston rod of the cylinder through a connecting rod, the vacuum end of the vacuum pump is connected to a one-way valve, and one end of the one-way valve extending to the outside is connected to the vacuum end of the vacuum tube through a hose.

[0014] The piston rod of the vacuum pump retracts, and the piston rod drives the connecting rod, and the connecting rod drives the piston rod of the cylinder, and the vacuum pump is evacuated at the same time. Since the vacuum pump is connected to the one-way valve, and the one-way valve is connected to the vacuum end of the vacuum tube, negative pressure is generated inside the vacuum tube. The outside of the cylinder is connected to the high-pressure relief valve, so that when the piston rod of the cylinder is pushed out, the excess high-pressure gas inside the cylinder enters the vacuum tube connected to the valve body, so that the vacuum tube restores the positive pressure, thereby releasing the adsorption of the cover body, so that the shielding box can be opened and the instrument can be placed.

[0015] A HPLC signal isolation method for solving the carrier crosstalk problem comprises the following steps:

[0016] Step 1: On-site measurement and collection through collection equipment;

[0017] Step 2, transmitting the information measured and collected on site in step 1 to the main station of the collection system through the communication channel;

[0018] Step 3, receiving the information collected in step 2 through the collection system master station, and realizing system data interaction, storage and collection business process management.

[0019] Preferably, in step 1, the collection equipment includes an electric energy meter, a concentrator and a collector.

[0020] Preferably, in step 2, the communication channel includes long-distance communication and local communication; the local communication includes narrowband carrier, high-speed carrier, micro-power wireless, and 485 bus.

[0021] The beneficial effect of the present invention is that, compared with the prior art,

[0022] 1. The present invention receives information collected by the collection equipment through the collection system master station, and realizes system data interaction, storage and collection business process management, transmits through the communication channel, realizes full-link message, realizes monitoring and analysis of the full-link communication status, and troubleshoots IoT communication problems. In combination with the master station message analysis function, the cause of the fault is traced, and extreme field environments and interference are reproduced through signal attenuation, noise injection, load control, topology structure and user quantity adjustment, and the equipment limit performance and equipment carrier communication performance are tested to troubleshoot crosstalk problems.

[0023] 2. The present invention shields the signals of CCO and STA through a shielding box to improve the shielding effect. After negative pressure is generated inside the vacuum tube, the vacuum tube is connected to the vacuum head to generate negative pressure inside the vacuum head, so that the vacuum head with negative pressure inside makes negative pressure between the groove and the protrusion, thereby strengthening the tightness of the connection between the protrusion and the groove body. Both the groove and the protrusion are made of metal, so after tight connection, the leakage problem of the shielding box is reduced, and the shielding ability is enhanced by the groove and the protrusion assembled together. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of an HPLC signal isolation device for solving the carrier crosstalk problem of the present invention;

[0025] Figure 2 This is an exploded view of an HPLC signal isolation device for solving the carrier crosstalk problem of the present invention;

[0026] Figure 3 This is an enlarged view of the structure of area A in the decomposition diagram;

[0027] Figure 4 It is a structural schematic diagram of the push cover assembly of the present invention;

[0028] In the figure: 11, box body; 12, cover body; 13, cover push assembly; 131, rotating head; 132, cylinder; 133, vacuum pump; 134, one-way valve; 135, connecting rod; 14, connecting mechanism; 141, groove; 142, bump; 143, vacuum tube; 144, vacuum head. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The embodiments described in this application are only embodiments of a part of the present invention, rather than all embodiments. Based on the spirit of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present invention.

[0030] An HPLC signal isolation device that solves the problem of carrier crosstalk, such as Figure 1 and 2 As shown, it includes a box body 11, a cover body 12, a cover pushing assembly 13, and a connecting mechanism 14.

[0031] The cover body 12 is rotatably connected to the upper and lower ends of the box body 11 , the cover push assembly 13 is connected to both sides of the box body 11 , and the connecting mechanism 14 is connected to the cover body 12 and the box body 11 .

[0032] The connecting mechanism 14 includes grooves 141 provided on the upper and lower surfaces of the box body 11, and a protrusion 142 installed on a surface of one side of the cover body 12 close to the box body 11 and used to be embedded in the groove body of the groove 141;

[0033] The cover push assembly 13 includes a rotating head 131 rotatably connected to the cover body 12 via a rotating shaft, and a cylinder 132 installed between the two rotating heads 131;

[0034] The cover body 12 at the top is pushed open by the cylinder 132 in the cover push assembly 13, so that the user can place the instrument. In this process, since there are two cover bodies 12, the tester's concerns about the direction of the shielding box are reduced, thereby improving the test efficiency.

[0035] The piston rod of the cylinder 132 is extended and retracted, thereby driving the rotating head 131 to move. Since the rotating head 131 is installed on the cover body 12, the cover body 12 is automatically opened by pushing the cover body 12, so that the user can place the instrument in the box body 11 to achieve spatial shielding of CCO and STA signals.

[0036] like Figure 3 and 4 As shown, the connecting mechanism 14 also includes a vacuum tube 143 passing through the shell of the box body 11, and vacuum heads 144 are installed at both ends of the vacuum tube 143, and the vacuum head 144 is embedded in the groove body of the groove 141; after negative pressure is generated inside the vacuum tube 143, since the vacuum tube 143 is connected to the vacuum head 144, negative pressure is generated inside the vacuum head 144, so that negative pressure is used to make negative pressure between the groove 141 and the protrusion 142, thereby strengthening the tightness of the connection between the protrusion 142 and the groove body of the groove 141. The groove 141 and the protrusion 142 are both made of metal, so after tight connection, while reducing the leakage problem of the shielding box, the shielding ability is enhanced by the groove 141 and the protrusion 142 that are spliced ​​together.

[0037] The push cover assembly 13 also includes a vacuum cylinder 133 installed on the outside of the cylinder 132, and the piston rod of the vacuum cylinder 133 is connected to the piston rod of the cylinder 132 via a connecting rod 135. The vacuum end of the vacuum cylinder 133 is connected to a one-way valve 134, and one end of the one-way valve 134 extending to the outside is connected to the vacuum end of the vacuum tube 143 through a hose.

[0038] The piston rod of the vacuum cylinder 133 retracts, and the piston rod drives the connecting rod 135, and the connecting rod 135 drives the piston rod of the cylinder 132, and the vacuum cylinder 133 is evacuated at the same time. Since the vacuum cylinder 133 is connected to the one-way valve 134, the one-way valve 134 is connected to the vacuum end of the vacuum tube 143, so that a negative pressure is generated inside the vacuum tube 143, and the outside of the cylinder 132 is connected to the high-pressure relief valve, so that when the piston rod of the cylinder 132 is pushed out, the excess high-pressure gas filled in the cylinder 132 enters the vacuum tube 143 connected to the valve body, so that the vacuum tube 143 restores the positive pressure, thereby releasing the adsorption of the cover body 12, so as to open the shielding box and place the instrument.

[0039] A HPLC signal isolation method for solving the carrier crosstalk problem comprises the following steps:

[0040] Step 1: Perform on-site measurement and collection through collection equipment.

[0041] The collection equipment includes an electric energy meter, a concentrator and a collector.

[0042] Step 2: Transmit the information measured and collected on site in step 1 to the main station of the collection system through the communication channel.

[0043] The communication channel includes long-distance communication and local communication. The local communication includes narrowband carrier, high-speed carrier, micro-power wireless, and 485 bus.

[0044] Step 3, receiving the information collected in step 2 through the collection system master station, and realizing system data interaction, storage and collection business process management.

[0045] The main station of the acquisition system is connected to the concentrator, the concentrator is connected to the collector, and the collector is connected to the electric energy meter to realize full-link messages, monitor and analyze the full-link communication status, troubleshoot IoT communication problems, and combine the main station message analysis function to trace the cause of the fault. Through signal attenuation, noise injection, load control, topology structure and user number adjustment, extreme field environment and interference are reproduced to test the equipment limit performance and equipment carrier communication performance.

[0046] The area scale can be adjusted by adjusting the number of electric energy meters and the power supply radius, and an external interface can be reserved to expand to dual areas to implement dual CCO crosstalk testing and interaction between CCO and STA. When CCO and STA interact, the spatial shielding of CCO and STA signals is achieved through a shielding box.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. An HPLC signal isolation device for solving the carrier crosstalk problem, comprising a box body, a cover body, a cover push assembly, and a connecting mechanism, wherein: The cover body is rotatably connected to the upper and lower ends of the box body, the cover push assembly is connected to both sides of the box body, and the connecting mechanism is connected to the cover body and the box body; the characteristics are: The connection mechanism includes a groove, a convex block and a vacuum tube passing through the box shell, wherein the groove is arranged on the upper and lower surfaces of the box, the convex block is installed on the surface of one side of the cover body close to the box body, and the convex block is embedded in the groove body of the groove; vacuum heads are installed at both ends of the vacuum tube, and the vacuum heads are embedded in the groove body of the groove; after negative pressure is generated inside the vacuum tube, negative pressure is generated inside the vacuum head, so that negative pressure is present between the groove and the convex block, and both the groove and the convex block are made of metal; The cover push assembly includes a first rotating head, a second rotating head and a cylinder; the first rotating head and the second rotating head are rotatably connected to the cover body through a rotating shaft, and the cylinder is installed between the first rotating head and the second rotating head; The push cover assembly also includes a vacuum pump installed on the outside of the cylinder, the piston rod of the vacuum pump is connected to the piston rod of the cylinder by a connecting rod, the vacuum end of the vacuum pump is connected to a one-way valve, and the end of the one-way valve extending to the outside is connected to the vacuum end of the vacuum tube by a hose; when the piston rod of the vacuum pump retracts, the connecting rod is driven by the piston rod, and the piston rod of the cylinder is driven by the connecting rod, so that the vacuum pump is evacuated at the same time, and since the vacuum pump is connected to the one-way valve, the one-way valve is connected to the vacuum end of the vacuum tube, so that negative pressure is generated inside the vacuum tube.

2. A HPLC signal isolation device for solving the carrier crosstalk problem according to claim 1, characterized in that: The cover body at the top end is pushed open by the cylinder in the cover pushing assembly, and two cover bodies are provided.

3. A HPLC signal isolation device for solving the carrier crosstalk problem according to claim 2, characterized in that: The piston rod of the cylinder is extended and retracted to drive the rotating head to move. Since the rotating head is installed on the cover body, the cover body is automatically opened by pushing the cover body.

4. The HPLC signal isolation device for solving the carrier crosstalk problem according to claim 3, characterized in that: The outside of the cylinder is connected to a high-pressure relief valve so that when the piston rod of the cylinder is pushed out, the excess high-pressure gas inside the cylinder enters the vacuum tube connected to the one-way valve, so that the vacuum tube can restore positive pressure, thereby releasing the adsorption of the cover body, making it easy to open the shielding box and place the instrument.

5. The HPLC signal isolation method for solving the carrier crosstalk problem according to the HPLC signal isolation device for solving the carrier crosstalk problem according to any one of claims 1 to 4, characterized in that: The following steps are involved: Step 1: On-site measurement and collection through collection equipment; Step 2, transmitting the information measured and collected on site in step 1 to the main station of the collection system through the communication channel; Step 3, receiving the information collected in step 2 through the collection system master station, and realizing system data interaction, storage and collection business process management.

6. A HPLC signal isolation method for solving the carrier crosstalk problem according to claim 5, characterized in that: In step 1, the collection equipment includes an electric energy meter, a concentrator and a collector.

7. A HPLC signal isolation method for solving the carrier crosstalk problem according to claim 5, characterized in that: In step 2, the communication channel includes long-distance communication and local communication; the local communication includes narrowband carrier, high-speed carrier, micro-power wireless, and 485 bus.

Images