A phase-sensitive track circuit phase angle adjustment method, device and phase angle adjuster

Abstract

Embodiments of the present application provide a phase angle adjustment method and device for phase-sensitive track circuit and a phase angle adjuster. The method comprises: in the case of adjusting the phase angle of the phase-sensitive track circuit, closing the intermediate gear switch group; determining the first phase angle of the phase-sensitive track circuit after closing the intermediate gear switch group; determining the range to which the first phase angle belongs; based on the range to which the first phase angle belongs, controlling the state of each switch in the coarse adjustment switch group or the fine adjustment switch group; and adjusting the first phase angle so that the first phase angle is equal to the target phase angle. The phase angle adjustment efficiency of the track railway is greatly improved, and the phase angle of the phase-sensitive track circuit can be adjusted to the target phase angle as soon as possible.

Description

Technical Field

[0001] This invention relates to the field of phase-sensitive track circuit control, and more specifically, to a phase angle adjustment method, device, and phase angle adjuster for a phase-sensitive track circuit. Background Technology

[0002] The track circuit currently in use is the Type 97 25Hz phase-sensitive track circuit commonly used by China Railway. Its working principle is as follows: the power supply panel outputs two power supplies: a track power supply of 25Hz / GJ220V and a local power supply of 25Hz / JJ110V (the phase of the local power supply of 25Hz / JJ110V exceeds the phase of the track power supply of 25Hz / GJ220V by 90°). The track power supply of 25Hz / GJ220V passes through the track transformer, resistor, and voltage reduction at the power supply end, and then through the power supply choke transformer, rail, and power receiving choke transformer. Finally, it passes through the power receiving track transformer, resistor, and voltage boost before returning to the indoor phase-sensitive contactor. The local power supply 25Hz / JJ110V is directly input to the phase-sensitive contactor from the power supply panel. Only when the two power supplies meet the following conditions: rail voltage Ug > 12.5V, local voltage Uj = 110V, frequency = 25Hz, and the phase of local voltage Uj exceeds the ideal value of rail voltage Ug by 90°, will the phase-sensitive contactor output 24V and the JWXC-1700 relay drop.

[0003] However, due to the influence of the power supply and receiving equipment, rail impedance, and power grid, the track voltage will undergo phase shift to varying degrees. When the phase shift value and the phase difference between the local voltage exceed a certain range, the phase-sensitive contactor will not output 24V. It is necessary to correct the phase shift of the track voltage by changing the coil inductive reactance and capacitor capacitive reactance values ​​in the HF-25 protection box connected in parallel to the power receiving end of the phase-sensitive track circuit, so that it is close to or equal to 90° with the local voltage.

[0004] In the actual process of adjusting the phase difference, since there are more than 100 possible combinations of terminal connections, the desired value can only be obtained by randomly blindly inserting the terminals. As a result, adjusting the phase difference value of a segment often takes a long time and the adjustment result is not ideal. Therefore, the current efficiency of adjusting the phase difference of phase-sensitive track circuits is low. Summary of the Invention

[0005] The present invention aims to provide, for example, a method, apparatus, and phase angle adjuster for adjusting the phase angle of a phase-sensitive track circuit, which can quickly adjust the phase angle to a target phase angle.

[0006] To achieve the above objectives, the technical solutions adopted in the embodiments of the present invention are as follows:

[0007] In a first aspect, embodiments of the present invention provide a phase angle adjustment method for a phase-sensitive track circuit, applied to a phase angle adjuster. The phase angle adjuster includes an intermediate range switch group, a coarse adjustment switch group, and a fine adjustment switch group. The intermediate range switch group includes a portion of the switches in the coarse adjustment switch group and a portion of the switches in the fine adjustment switch group. The method includes:

[0008] With the phase angle of the phase-sensitive track circuit adjusted, the intermediate gear switch group is closed;

[0009] After the intermediate gear switch group is closed, the first phase angle of the phase-sensitive track circuit is determined.

[0010] Determine the range to which the first phase angle belongs;

[0011] Based on the range to which the first phase angle belongs, the state of each switch in the coarse adjustment switch group or the fine adjustment switch group is controlled to adjust the first phase angle so that the first phase angle is equal to the target phase angle.

[0012] In an optional implementation, the step of controlling the state of each switch in the coarse adjustment switch group or the fine adjustment switch group based on the range to which the first phase angle belongs, and adjusting the first phase angle so that the first phase angle is equal to the target phase angle, includes:

[0013] When the first phase angle falls within a first range, a first difference between the first phase angle and the target phase angle is determined;

[0014] The switch corresponding to the first difference in the coarse adjustment switch group is closed to raise the first phase angle so that the first phase angle is equal to the target phase angle, wherein the first range is (0, 80°) and the target phase angle is 90°.

[0015] In an optional implementation, the step of controlling the state of each switch in the coarse adjustment switch group or the fine adjustment switch group based on the range to which the first phase angle belongs, and adjusting the first phase angle so that the first phase angle is equal to the target phase angle, includes:

[0016] When the first phase angle falls within the second range, a second difference between the first phase angle and the target phase angle is determined;

[0017] The switch corresponding to the second difference in the fine-tuning switch group is closed to raise the first phase angle so that the first phase angle is equal to the target phase angle, wherein the second range is (80°, 90°) and the target phase angle is 90°.

[0018] In an optional implementation, the step of controlling the state of each switch in the coarse adjustment switch group or the fine adjustment switch group based on the range to which the first phase angle belongs, and adjusting the first phase angle so that the first phase angle is equal to the target phase angle, includes:

[0019] When the first phase angle falls within the third range, a third difference between the first phase angle and the target phase angle is determined;

[0020] The switch corresponding to the third difference in the coarse adjustment switch group is opened to reduce the first phase angle so that the first phase angle is equal to the target phase angle, wherein the third range is (100°, 180°) and the target phase angle is 90°.

[0021] In an optional implementation, the step of controlling the state of each switch in the coarse adjustment switch group or the fine adjustment switch group based on the range to which the first phase angle belongs, and adjusting the first phase angle so that the first phase angle is equal to the target phase angle, includes:

[0022] When the first phase angle falls within the fourth range, a fourth difference between the first phase angle and the target phase angle is determined;

[0023] The switch corresponding to the fourth difference in the fine-tuning switch group is turned off to reduce the first phase angle so that the first phase angle is equal to the target phase angle, wherein the fourth range is (90°, 100°) and the target phase angle is 90°.

[0024] Secondly, embodiments of the present invention provide a phase angle adjuster, the phase angle adjuster comprising: a control unit, a display unit, a coarse adjustment unit, and a fine adjustment unit;

[0025] The control unit is electrically connected to the coarse adjustment unit, the fine adjustment unit, and the display unit, respectively.

[0026] The control unit detects the first phase angle of the phase-sensitive track circuit and determines the range to which the first phase angle belongs;

[0027] The control unit controls the state of each switch in the coarse adjustment unit or fine adjustment unit based on the range to which the first phase angle belongs;

[0028] The display unit is used to display the first phase angle.

[0029] In an optional implementation, the fine-tuning unit includes a plurality of first sub-switches;

[0030] The plurality of first sub-switches are connected in parallel;

[0031] The coarse adjustment unit includes multiple second sub-switches;

[0032] The plurality of second sub-switches are connected in parallel.

[0033] In an optional embodiment, the coarse adjustment unit and the fine adjustment unit are connected in parallel with the protective box terminal block of the phase-sensitive track circuit, wherein the protective box terminal block includes multiple coil tap terminals and multiple capacitor tap terminals.

[0034] Multiple first sub-switches are connected in series with multiple coil tap terminals, wherein each first sub-switch is connected to one coil tap terminal;

[0035] Multiple second sub-switches are connected in series with multiple capacitor tap terminals, wherein each second sub-switch is connected to one capacitor tap terminal.

[0036] Thirdly, embodiments of the present invention provide a phase angle adjustment device for a phase-sensitive track circuit, the device comprising:

[0037] Control module and determination module;

[0038] The control module is used to close the intermediate gear switch group when the phase angle of the phase-sensitive track circuit is adjusted.

[0039] The determining module is used to determine the first phase angle of the phase-sensitive track circuit after the intermediate gear switch group is closed.

[0040] The determining module is used to determine the range to which the first phase angle belongs;

[0041] The control module is used to control the state of each switch in the coarse adjustment switch group or the fine adjustment switch group based on the range to which the first phase angle belongs, and adjust the first phase angle so that the first phase angle is equal to the target phase angle.

[0042] This application has the following beneficial effects:

[0043] This application improves the efficiency of phase angle adjustment for railway tracks by adjusting the phase angle of the phase-sensitive track circuit, closing the intermediate position switch group, determining the first phase angle of the phase-sensitive track circuit after closing the intermediate position switch group, determining the range of the first phase angle, and controlling the state of each switch in the coarse adjustment switch group or fine adjustment switch group based on the range of the first phase angle to adjust the first phase angle to be equal to the target phase angle. Attached Figure Description

[0044] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is one of the flowcharts for a phase angle adjustment method for a phase-sensitive track circuit provided in an embodiment of the present invention;

[0046] Figure 2 A second flowchart illustrating a phase angle adjustment method for a phase-sensitive track circuit provided in an embodiment of the present invention;

[0047] Figure 3 A flowchart of a phase angle adjustment method for a phase-sensitive track circuit provided in an embodiment of the present invention (Part 3);

[0048] Figure 4 A flowchart of a phase angle adjustment method for a phase-sensitive track circuit provided in an embodiment of the present invention (Part 4);

[0049] Figure 5 The fifth flowchart of a phase angle adjustment method for a phase-sensitive track circuit provided in this embodiment of the invention;

[0050] Figure 6 This is one of the structural diagrams of a phase angle adjuster provided in an embodiment of the present invention;

[0051] Figure 7 Circuit diagrams of the fine-tuning unit and coarse-tuning unit provided in embodiments of the present invention;

[0052] Figure 8 This is a second structural diagram of a phase angle adjuster provided in an embodiment of the present invention;

[0053] Figure 9 This is a structural block diagram of a phase angle adjustment device for a phase-sensitive track circuit provided in an embodiment of the present invention. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0055] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0056] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0057] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0058] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0059] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0060] Please refer to Figure 1 This embodiment provides a flowchart of a phase angle adjustment method for a phase-sensitive track circuit, which specifically includes the following steps:

[0061] The phase angle adjustment method of the phase-sensitive track circuit is applied to the phase angle adjuster, which includes a middle range switch group, a coarse adjustment switch group, and a fine adjustment switch group. The middle range switch group includes some switches from the coarse adjustment switch group and some switches from the fine adjustment switch group.

[0062] When adjusting the phase angle of the phase-sensitive track circuit, the phase angle adjuster is electrically connected to the phase-sensitive track circuit, and the phase angle of the phase-sensitive track circuit is adjusted based on the phase angle adjuster.

[0063] Step 101: After adjusting the phase angle of the phase-sensitive track circuit, close the intermediate gear switch group.

[0064] Step 102: Determine the first phase angle of the phase-sensitive track circuit after closing the intermediate gear switch group.

[0065] Step 103: Determine the range to which the first phase angle belongs.

[0066] Step 104: Based on the range of the first phase angle, control the state of each switch in the coarse adjustment switch group or the fine adjustment switch group to adjust the first phase angle so that the first phase angle is equal to the target phase angle.

[0067] It should be noted that the intermediate-range switch group includes some switches from the coarse-adjustment switch group and some switches from the fine-adjustment switch group. The intermediate-range switch group must be set to ensure that the phase angle of the phase-sensitive track circuit meets the preset range after the intermediate-range switch group is closed. The preset range should not be too far from the target phase angle. This ensures that after the intermediate-range switch group is closed, the phase angle of the phase-sensitive track circuit can be adjusted to the target phase angle without large-scale adjustments, thereby improving the efficiency of phase angle adjustment of the phase-sensitive track circuit.

[0068] The intermediate position switch group can also be configured such that, after the intermediate position switch group is closed, the phase angle of the phase-sensitive track circuit is half of the target phase angle, etc., but the embodiments of the present invention do not impose specific limitations on this.

[0069] After closing the intermediate position switch group of the phase angle adjuster, the phase angle adjuster detects the first phase angle of the current phase-sensitive track circuit.

[0070] The phase angle adjuster determines the range to which the first phase angle belongs, and different ranges correspond to different adjustment strategies. After determining the current range of the first phase angle, the phase angle adjuster obtains the adjustment strategy for that range, and adjusts the first phase angle based on the adjustment strategy for that range, so that the first phase angle is equal to the target phase angle.

[0071] It should be noted that the target phase angle is the ideal phase angle of the phase-sensitive track circuit.

[0072] For example, if it is determined that the first phase angle belongs to a first range, then a first adjustment strategy for the first range is determined, and the first phase angle is adjusted based on the first adjustment strategy. If it is determined that the first phase angle belongs to a second range, then a second adjustment strategy for the second range is determined, and the first phase angle is adjusted based on the second adjustment strategy, wherein the first adjustment strategy and the second adjustment strategy are different.

[0073] This application improves the efficiency of phase angle adjustment for railway tracks by adjusting the phase angle of the phase-sensitive track circuit, closing the intermediate position switch group, determining the first phase angle of the phase-sensitive track circuit after closing the intermediate position switch group, determining the range of the first phase angle, and controlling the state of each switch in the coarse adjustment switch group or fine adjustment switch group based on the range of the first phase angle to adjust the first phase angle to be equal to the target phase angle.

[0074] Regarding the specific adjustment of the first phase angle, in another embodiment of this application, such as Figure 2 As shown, a method for adjusting the phase angle of a phase-sensitive track circuit is provided, which specifically includes the following steps:

[0075] Step 104-1: When the first phase angle is within the first range, determine the first difference between the first phase angle and the target phase angle.

[0076] Step 104-2: Control the switch in the coarse adjustment switch group corresponding to the first difference to close, so as to raise the first phase angle and make the first phase angle equal to the target phase angle.

[0077] The first range is (0, 80°), and the target phase angle is 90°.

[0078] The first phase angle of the current phase-sensitive track circuit is detected by the phase angle adjuster. When the first phase angle is within the first range (0, 80°), the first difference between the first phase angle and the target phase angle of 90° is determined. Since the difference between the first phase angle and the target phase angle is large when the first phase angle is within the first range, and the adjustment values ​​corresponding to each switch in the coarse adjustment switch group are also large, the first phase angle can be increased by controlling the switch corresponding to the first difference in the coarse adjustment switch group to close when the difference between the first phase angle and the target phase angle is large, so that the first phase angle is equal to the target phase angle.

[0079] For example, if the coarse adjustment switch group includes a first switch, a second switch, and a third switch, and the intermediate position switch group includes a second switch, then the first phase angle can be increased by closing either the first switch or the third switch.

[0080] The closing of the switch in the coarse adjustment switch group corresponding to the first difference can be automatically achieved based on the phase angle adjuster. The phase angle adjuster calculates the switch in the coarse adjustment switch group corresponding to the first difference and closes the corresponding switch.

[0081] Adjustments can also be made manually by closing and opening each switch in the coarse adjustment switch group, thereby adjusting the first phase angle of the current phase-sensitive track circuit to make it equal to the target phase angle. In the coarse adjustment switch group, the unit capacitance is increased or decreased between each switch based on the switch sequence. For example, the order of the coarse adjustment switch group from left to right is: switch 1, switch 2, switch 3, switch 4. The capacitance of each switch is increased or decreased sequentially from left to right, without specific restrictions on the capacitance of switches 1, 2, 3, and 4. When adjusting the first phase angle, the switch open / close combination is selected as needed. Increasing or decreasing the phase angle by 2μf will correspondingly increase or decrease it by 10–20°. Therefore, the first phase angle can be adjusted by opening and closing each switch in the coarse adjustment switch group, or by closing multiple switches.

[0082] For example, in the coarse adjustment switch group, switch 1 is 8uF, switch 2 is 4uF, switch 3 is 2uF, and switch 4 is 2uF. This application does not impose specific limitations on the size of the capacitors corresponding to the switches in the coarse adjustment switch group.

[0083] For example: if the current phase angle of the phase-sensitive track circuit does not reach the target phase angle after closing switch 2, then open switch 2, close switch 3, and so on.

[0084] Regarding the specific adjustment of the first phase angle, in another embodiment of this application, such as Figure 3 As shown, a method for adjusting the phase angle of a phase-sensitive track circuit is provided, which specifically includes the following steps:

[0085] Step 104-3: When the first phase angle is within the second range, determine the second difference between the first phase angle and the target phase angle.

[0086] Step 104-4: Control the switch in the fine-tuning switch group corresponding to the second difference to close, so as to raise the first phase angle and make the first phase angle equal to the target phase angle.

[0087] The second range is (80°, 90°), and the target phase angle is 90°.

[0088] The first phase angle of the current phase-sensitive track circuit is detected by the phase angle adjuster. When the first phase angle is within the second range, i.e., the second range can be (80, 90°), the second difference between the first phase angle and the target phase angle of 90° is determined. When the first phase angle is within the second range, the difference between the first phase angle and the target phase angle is small, and the adjustment values ​​corresponding to each switch in the fine-tuning switch group are also small. Therefore, when the second difference between the first phase angle and the target phase angle is small, the first phase angle can be increased by controlling the switch in the fine-tuning switch group corresponding to the second difference to close, so that the first phase angle is equal to the target phase angle.

[0089] The closing of the switch in the fine-tuning switch group corresponding to the second difference can be automatically achieved based on the phase angle adjuster. The switch in the fine-tuning switch group corresponding to the second difference is calculated and closed based on the phase angle adjuster.

[0090] Adjustments can also be made manually by closing or opening individual switches in the fine-tuning switch group, thereby adjusting the first phase angle of the current phase-sensitive track circuit to make it equal to the target phase angle. The individual switches in the fine-tuning switch group increase or decrease the phase angle by a unit based on their sequence. For example, in a fine-tuning switch group from left to right: switch 5, switch 6, switch 7, switch 8, switch 9, switch 9 has a phase angle approximately 3° higher than switch 8, switch 8 has a phase angle approximately 3° higher than switch 7, switch 7 has a phase angle approximately 3° higher than switch 6, and switch 6 has a phase angle approximately 3° higher than switch 5. Therefore, the first phase angle can be adjusted by closing or opening a single switch in the fine-tuning switch group, or by closing multiple switches.

[0091] The adjustment of the first phase angle by closing multiple switches in the fine-tuning switch group can be achieved based on an algorithm. Based on the current first phase angle, the algorithm calculates the multiple switches in the fine-tuning switch group that need to be closed, and closes the multiple switches to achieve precise adjustment of the current first phase angle.

[0092] It should be noted that after the phase angle of the phase-sensitive track circuit is adjusted based on the switches of the coarse adjustment switch group, if the phase angle of the current phase-sensitive track circuit has not reached the target phase angle, the phase angle of the phase-sensitive track circuit can be adjusted within a small range based on the closing of each switch in the fine adjustment switch group, so that the track phase angle is consistent with the target phase angle.

[0093] Regarding the specific adjustment of the first phase angle, in another embodiment of this application, such as Figure 4 As shown, a method for adjusting the phase angle of a phase-sensitive track circuit is provided, which specifically includes the following steps:

[0094] Step 104-5: When the first phase angle falls within the third range, determine the third difference between the first phase angle and the target phase angle.

[0095] Step 104-6: Control the switch in the coarse adjustment switch group corresponding to the third difference to open, so as to reduce the first phase angle and make the first phase angle equal to the target phase angle.

[0096] The third range is (100°, 180°), and the target phase angle is 90°.

[0097] The first phase angle of the current phase-sensitive track circuit is detected by the phase angle adjuster. When the first phase angle belongs to the third range, that is, the third range can be (100°, 180°), the third difference between the first phase angle and the target phase angle of 90° is determined. Since the current first phase angle is greater than the target phase angle and the third difference between the two is large, the first phase angle can be reduced by controlling the switch corresponding to the third difference in the coarse adjustment switch group to be disconnected, so that the first phase angle is equal to the target phase angle.

[0098] The disconnection of the switch in the coarse adjustment switch group corresponding to the third difference can be automatically achieved based on the phase angle adjuster. The phase angle adjuster calculates the switch in the coarse adjustment switch group corresponding to the third difference and disconnects the switch.

[0099] Adjustments can also be made manually by opening the closed switches in the coarse adjustment switch group one by one to adjust the first phase angle of the current phase-sensitive track circuit so that the first phase angle is equal to the target phase angle.

[0100] Regarding the specific adjustment of the first phase angle, in another embodiment of this application, such as Figure 5 As shown, a method for adjusting the phase angle of a phase-sensitive track circuit is provided, which specifically includes the following steps:

[0101] Step 104-7: When the first phase angle belongs to the fourth range, determine the fourth difference between the first phase angle and the target phase angle.

[0102] Step 104-8: Control the switch in the fine-tuning switch group corresponding to the fourth difference to disconnect, so as to reduce the first phase angle and make the first phase angle equal to the target phase angle.

[0103] The fourth range is (90°, 100°), and the target phase angle is 90°.

[0104] The first phase angle of the current phase-sensitive track circuit is detected by the phase angle adjuster. When the first phase angle is within the fourth range, i.e., the fourth range can be (90°, 100°), the fourth difference between the first phase angle and the target phase angle of 90° is determined. Since the difference between the first phase angle and the target phase angle is small when the first phase angle is in the fourth range, the first phase angle can be reduced by controlling the switch corresponding to the fourth difference in the fine-tuning switch group to make the first phase angle equal to the target phase angle.

[0105] The switch in the fine-tuning switch group corresponding to the fourth difference can be opened automatically based on the phase angle adjuster. The switch in the fine-tuning switch group corresponding to the fourth difference is calculated based on the phase angle adjuster, and the corresponding switch in the fine-tuning switch group is opened.

[0106] It can also be adjusted manually by opening the closed switches in the fine-tuning switch group one by one to adjust the first phase angle of the current phase-sensitive track circuit so that the first phase angle is equal to the target phase angle.

[0107] It should be noted that after adjusting the phase angle of the phase-sensitive track circuit based on the coarse adjustment switch group, if the current phase angle of the phase-sensitive track circuit has not reached the target phase angle and the phase angle of the phase-sensitive track circuit is still greater than the target phase angle, the phase angle of the phase-sensitive track circuit can be adjusted within a small range by opening the switch in the fine adjustment switch group, so that the track phase angle is consistent with the target phase angle.

[0108] To achieve adjustment of the phase angle of the phase-sensitive track circuit, in another embodiment of this application, such as... Figure 6 As shown, a phase angle adjuster 200 is provided, including:

[0109] The phase angle adjuster 200 includes: a control unit 201, a display unit 202, a coarse adjustment unit 203, and a fine adjustment unit 204; the control unit 201 is electrically connected to the coarse adjustment unit 203, the fine adjustment unit 204, and the display unit 202 respectively; the control unit 201 detects the first phase angle of the phase-sensitive track circuit and determines the range to which the first phase angle belongs; the control unit 201 controls the state of each switch in the coarse adjustment unit or the fine adjustment unit based on the range to which the first phase angle belongs; the display unit 202 is used to display the first phase angle.

[0110] like Figure 7 The diagram shows the circuit diagrams of the fine-tuning unit and the coarse-tuning unit: the fine-tuning unit 204 includes a plurality of first sub-switches 2041; the plurality of first sub-switches 2041 are connected in parallel; the coarse-tuning unit 203 includes a plurality of second sub-switches 2031; the plurality of second sub-switches 2031 are connected in parallel.

[0111] like Figure 8 As shown, a phase angle adjuster 200 is provided, which further includes a protective box terminal block 205. The coarse adjustment unit 203 and the fine adjustment unit 204 are connected in parallel with the protective box terminal block 205 of the phase-sensitive track circuit. The protective box terminal block 205 includes a plurality of coil tap terminals 2051 and a plurality of capacitor tap terminals 2052. A plurality of first sub-switches 2041 are connected in series with the plurality of coil tap terminals 2051, wherein each first sub-switch is connected to one coil tap terminal. A plurality of second sub-switches 2031 are connected in series with the plurality of capacitor tap terminals 2052, wherein each second sub-switch is connected to one capacitor tap terminal.

[0112] Reference Figure 9 The present invention also provides a phase angle adjustment device 300 for a phase-sensitive track circuit, the phase angle adjustment device 300 comprising: a control module 301 and a determination module 302.

[0113] The control module 301 is used to close the intermediate gear switch group when the phase angle of the phase-sensitive track circuit is adjusted.

[0114] The determining module 302 is used to determine the first phase angle of the phase-sensitive track circuit after the intermediate gear switch group is closed.

[0115] The determining module 302 is used to determine the range to which the first phase angle belongs;

[0116] The control module 301 is used to control the state of each switch in the coarse adjustment switch group or the fine adjustment switch group based on the range to which the first phase angle belongs, and adjust the first phase angle so that the first phase angle is equal to the target phase angle.

[0117] Optionally, the control module 301 is specifically used for:

[0118] When the first phase angle falls within a first range, a first difference between the first phase angle and the target phase angle is determined;

[0119] The switch corresponding to the first difference in the coarse adjustment switch group is closed to raise the first phase angle so that the first phase angle is equal to the target phase angle, wherein the first range is (0, 80°) and the target phase angle is 90°.

[0120] In summary, this application, by adjusting the phase angle of the phase-sensitive track circuit, closing the intermediate position switch group, determining the first phase angle of the phase-sensitive track circuit after closing the intermediate position switch group, determining the range of the first phase angle, and controlling the state of each switch in the coarse adjustment switch group or fine adjustment switch group based on the range of the first phase angle, adjusts the first phase angle so that the first phase angle is equal to the target phase angle, which greatly improves the efficiency of phase angle adjustment of the track railway and can adjust the phase angle of the phase-sensitive track circuit to the target phase angle as quickly as possible.

[0121] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A phase angle adjustment method for a phase-sensitive track circuit, applied to a phase angle adjuster, characterized in that, The phase angle adjuster includes a middle range switch group, a coarse adjustment switch group, and a fine adjustment switch group, wherein the middle range switch group includes some switches from the coarse adjustment switch group and some switches from the fine adjustment switch group, and the method includes: With the phase angle of the phase-sensitive track circuit adjusted, the intermediate gear switch group is closed; After the intermediate gear switch group is closed, the first phase angle of the phase-sensitive track circuit is determined. Determine the range to which the first phase angle belongs; Based on the range to which the first phase angle belongs, the state of each switch in the coarse adjustment switch group or the fine adjustment switch group is controlled to adjust the first phase angle so that the first phase angle is equal to the target phase angle; the step of controlling the state of each switch in the coarse adjustment switch group or the fine adjustment switch group to adjust the first phase angle so that the first phase angle is equal to the target phase angle based on the range to which the first phase angle belongs includes: When the first phase angle falls within a first range, a first difference between the first phase angle and the target phase angle is determined; The step of controlling the switch in the coarse adjustment switch group corresponding to the first difference to close, thereby raising the first phase angle so that the first phase angle is equal to the target phase angle, wherein the first range is (0°, 80°) and the target phase angle is 90°; the step of controlling the state of each switch in the coarse adjustment switch group or the fine adjustment switch group based on the range to which the first phase angle belongs, to adjust the first phase angle so that the first phase angle is equal to the target phase angle, includes: When the first phase angle falls within the second range, a second difference between the first phase angle and the target phase angle is determined; The switch corresponding to the second difference in the fine-tuning switch group is closed to raise the first phase angle so that the first phase angle is equal to the target phase angle, wherein the second range is (80º, 90º) and the target phase angle is 90º.

2. The method according to claim 1, characterized in that, The step of controlling the state of each switch in the coarse adjustment switch group or the fine adjustment switch group based on the range to which the first phase angle belongs, and adjusting the first phase angle so that the first phase angle is equal to the target phase angle, includes: When the first phase angle falls within the third range, a third difference between the first phase angle and the target phase angle is determined; The switch corresponding to the third difference in the coarse adjustment switch group is opened to reduce the first phase angle so that the first phase angle is equal to the target phase angle, wherein the third range is (100°, 180°) and the target phase angle is 90°.

3. The method according to claim 1, characterized in that, The step of controlling the state of each switch in the coarse adjustment switch group or the fine adjustment switch group based on the range to which the first phase angle belongs, and adjusting the first phase angle so that the first phase angle is equal to the target phase angle, includes: When the first phase angle falls within the fourth range, a fourth difference between the first phase angle and the target phase angle is determined; The switch corresponding to the fourth difference in the fine-tuning switch group is turned off to reduce the first phase angle so that the first phase angle is equal to the target phase angle, wherein the fourth range is (90°, 100°) and the target phase angle is 90°.

4. A phase angle adjuster for a phase-sensitive track circuit, characterized in that, The phase angle adjuster includes: a control unit, a display unit, a coarse adjustment unit, and a fine adjustment unit; The control unit is electrically connected to the coarse adjustment unit, the fine adjustment unit, and the display unit, respectively. The control unit detects the first phase angle of the phase-sensitive track circuit and determines the range to which the first phase angle belongs; The control unit controls the state of each switch in the coarse adjustment unit or fine adjustment unit based on the range to which the first phase angle belongs; When the first phase angle falls within a first range, a first difference between the first phase angle and the target phase angle is determined; The switch corresponding to the first difference in the coarse adjustment unit is closed to raise the first phase angle so that the first phase angle is equal to the target phase angle, wherein the first range is (0°, 80°) and the target phase angle is 90°. When the first phase angle falls within the second range, a second difference between the first phase angle and the target phase angle is determined; The switch corresponding to the second difference in the fine-tuning unit is closed to raise the first phase angle so that the first phase angle is equal to the target phase angle, wherein the second range is (80º, 90º) and the target phase angle is 90º; The display unit is used to display the first phase angle.

5. The phase angle adjuster according to claim 4, characterized in that, The fine-tuning unit includes multiple first sub-switches; The plurality of first sub-switches are connected in parallel; The coarse adjustment unit includes multiple second sub-switches; The plurality of second sub-switches are connected in parallel.

6. The phase angle adjuster according to claim 5, characterized in that, The coarse adjustment unit and the fine adjustment unit are connected in parallel with the protective box terminal block of the phase-sensitive track circuit, wherein the protective box terminal block includes multiple coil tap terminals and multiple capacitor tap terminals; Multiple first sub-switches are connected in series with multiple coil tap terminals, wherein each first sub-switch is connected to one coil tap terminal; Multiple second sub-switches are connected in series with multiple capacitor tap terminals, wherein each second sub-switch is connected to one capacitor tap terminal.

7. A phase angle adjustment device for a phase-sensitive track circuit, characterized in that, The device includes: Control module and determination module; The control module is used to close the intermediate gear switch group when the phase angle of the phase-sensitive track circuit is adjusted. The determining module is used to determine the first phase angle of the phase-sensitive track circuit after the intermediate gear switch group is closed. The determining module is used to determine the range to which the first phase angle belongs; The control module is used to control the state of each switch in the coarse adjustment switch group or the fine adjustment switch group based on the range to which the first phase angle belongs, so as to adjust the first phase angle so that the first phase angle is equal to the target phase angle; the control module is specifically used for: When the first phase angle falls within a first range, a first difference between the first phase angle and the target phase angle is determined; The switch corresponding to the first difference in the coarse adjustment switch group is closed to raise the first phase angle so that the first phase angle is equal to the target phase angle, wherein the first range is (0°, 80°) and the target phase angle is 90°; When the first phase angle falls within the second range, a second difference between the first phase angle and the target phase angle is determined; The switch corresponding to the second difference in the fine-tuning switch group is closed to raise the first phase angle so that the first phase angle is equal to the target phase angle, wherein the second range is (80º, 90º) and the target phase angle is 90º.

Images