CN108923787B - Line switching equipment - Google Patents

Abstract

The invention discloses a line switching device, and belongs to the technical field of communication. The circuit switching equipment comprises n first waveband switches, m second waveband switches and a plurality of switching circuits; each first band switch comprises at least m movable knife groups, and each second band switch comprises at least n movable knife groups; the fixed knife group is movably connected with a plurality of movable knife groups through a linkage mechanism, and the fixed knife group is connected with one movable knife group at a time; when the fixed knife group is connected with the movable knife group, the kth fixed knife in the fixed knife group is connected with the kth movable knife in the connected movable knife group; the fixed knife of the ith first band switch in the n first band switches is connected with the ith first equipment in the n first equipment, and the fixed knife of the jth second band switch in the m second band switches is connected with the jth second equipment in the m second equipment; the jth group of movable knives of the ith first band switch is connected with the ith group of movable knives of the jth second band switch through a switching line.

Description

a circuit switching device

technical field

The present invention relates to the technical field of communication, in particular to a circuit switching device.

Background technique

At present, the ship communication system has developed into a complex system that relies on the access and communication command provided by the integrated information transmission network, integrated network management, and wireless communication subnet to realize information exchange. The use of information transmission network for information interaction is suitable for large-scale ship communication systems. In some small-scale ship communication systems, such as systems containing 7 or 8 devices, if the information transmission network is used for information interaction, it is more complicated and extremely Not practical.

SUMMARY OF THE INVENTION

The embodiment of the present invention provides a circuit switching device, which can solve the complex and impractical problem when a small-scale ship communication system adopts an information transmission network to perform information exchange. The technical solution is as follows:

The present invention provides a circuit switching device suitable for one-to-one communication between n first devices and m second devices, wherein the circuit switching device includes n first-band switches and m second-band switches and several exchange lines;

Each first waveband switch and each second waveband switch include a switch body, a fixed knife group, a plurality of movable knife groups and a linkage mechanism arranged on the switch body, and each of the first waveband switches includes at least m A movable knife group, each of the second waveband switches includes at least n movable knife groups; the number of fixed knives in the fixed knife group is the same as the number of movable knives in each of the movable knife groups, and the number of the fixed knives is the same as the number of movable knives in each movable knife group. The number is equal to the number of exchange lines required for communication between the first device and the second device; the fixed knife group is movably connected to the several movable knife groups through the linkage mechanism, and the fixed knife group is once Connect with one of the movable knife groups; when the fixed knife group is connected with the movable knife group, the kth fixed knife in the fixed knife group is connected with the kth movable knife in the connected movable knife group, k is a positive integer, and k is less than or equal to the number of the fixed knives;

The fixed blade of the i-th first-band switch of the n first-band switches is connected to the i-th first device of the n first-band switches, and the m second-band switches of the m second-band switches. The fixed blades of the j second-band switches are connected to the j-th second device among the m second devices; the j-th group of movable blades of the i-th first-band switch pass through the exchange line Connect with the i-th movable knife of the j-th second band switch; n≥2, m≥2; i and j are both positive integers, n≥i≥2, m≥j≥2,

Both the first waveband switch and the second waveband switch further include a knob, the knob is fixedly connected with the linkage mechanism, and when the knob is rotated, the fixed knife group is movably connected with the several movable knife groups , the knob includes several gears, the gears are the positions of the knob on the rotation track, and when the knob is rotated to different gears, the fixed knife group is connected with different movable knife groups; The knob of the first band switch includes m of the gears, and the knob of the second band switch includes n of the gears,

The linkage mechanism includes a rod and a number of conductive sheets. In the same band switch, the rod is rotatably fixed to the switch body, the knob is mounted on one end of the rod, and the several conductive sheets are mounted on the rod. At the other end of the wire, the number of the conductive strips is the same as the number of the fixed knives, the kth fixed knife is movably connected to the kth conductive strip, the conductive strips are provided with contact claws, and each of the The k-th movable knife in the movable knife group is arranged on the movement track of the contact claw of the k-th conductive sheet. When the knob is rotated to a different gear, the contact claw of the k-th conductive sheet Connect with different movable knives.

Optionally, the circuit switching device further includes a panel;

The panel is provided with n first mounting holes and m second mounting holes,

The knob of the s-th first band switch is exposed in the s-th first installation hole; the knob of the t-th second band switch is exposed in the t-th second installation hole, both s and t are is a positive integer, n≥s≥2, m≥t≥2.

Optionally, the panel area below the i-th first installation hole is provided with the i-th identifier of the first device, and the panel area above each of the first installation holes is provided with each of the first installation holes. The identification of the second device, the panel area under the jth second installation hole is provided with the jth identification of the second device, and the panel area above each second installation hole is provided with each of the The logo of the first device, the logo of the second device set in the panel area above the first installation hole is set in a one-to-one correspondence with the gear position of the knob in the first installation hole, and the panel above the second installation hole is set in a one-to-one correspondence. The identifier of the first device set in the area is set in a one-to-one correspondence with the gear position of the knob in the second installation hole.

Optionally, the line switching device further includes a socket, the socket includes a socket body, and a plurality of probes disposed on the socket body, each of the probes is connected to each of the fixed blades, and each of the probes is connected to each of the fixed blades. The fixed blade connected to the probe is different, and the first device and the second device are respectively connected to the fixed blade through the socket.

Optionally, the line switching device includes four first-band switches and four second-band switches;

Both the first waveband switch and the second waveband switch include 4 movable knife groups, the number of fixed knives in the fixed knife group, the number of movable knives in each of the movable knife groups, and the i-th movable knife group. The number of the exchange lines required for communication between the first device and the jth second device is all 10.

Optionally, four knobs of the first waveband switch and four knobs of the second waveband switch are arranged on the panel in two rows, one row is the knob of the first waveband switch, and the other row is the knob of the first waveband switch. the knob of the second band switch.

Optionally, the 10 switching lines between the i-th first device among the 4 first devices and the j-th second device among the 4 second devices include:

2 lines for transmitting balanced audio signals, 2 lines for transmitting balanced audio signals, 1 line for transmitting push-to-talk signals, 1 line for transmitting ready line numbers, 1 line A line for transmitting encrypted signals, a line for transmitting de-encrypted signals, a ground line, and a backup line.

Optionally, the line switching device includes five first-band switches and five second-band switches; and both the first-band switches and the second-band switches include five movable knife groups , the number of fixed knives in the fixed knife group, the number of movable knives in each of the movable knife groups, and the required communication between the i-th first device and the j-th second device The number of switching lines is all 16.

Optionally, the first device includes a voice terminal, a digital newspaper terminal and a data link terminal;

The second equipment includes a short-wave transceiver, a short-wave radio, a sea radio, a high-frequency telephone and an air radio.

The beneficial effects brought by the technical solutions provided by the embodiments of the present invention are: the line switching device is only composed of several band switches and switching lines, the whole device does not need power supply, has a simple structure, high reliability, low cost, convenient operation and use, and can be widely used. It is used for small-scale communication systems, such as the local application of large-scale communication systems, and is especially suitable for some emergency situations, with strong practicability.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

1 is a schematic structural diagram of a circuit switching device provided by an embodiment of the present invention;

2 is a schematic diagram of a knob and a panel provided by an embodiment of the present invention;

3 is a schematic diagram of a socket provided by an embodiment of the present invention;

4 is a schematic structural diagram of a multilayer band switch provided by an embodiment of the present invention;

5a-5j are schematic diagrams of connection of 10 switching lines when the line switching device according to an embodiment of the present invention performs one-to-one communication between a first device and a second device;

FIG. 6 is a schematic diagram of a connection between a socket and a band switch provided by an embodiment of the present invention.

In the figure, the labels of the parts are as follows:

1 first wave switch, 2 second wave switch, 3 exchange lines, 11 fixed knife, 11a contact, 12 movable knife, 4 knob, 5 panel, 6 socket, 61 socket body, 62 probe, 13 ring base, 14 rods, 15 conductive sheets, 15a contact claws, 8a first device, 8b second device, 8a1 the logo of the first device, 8b1 the logo of the second device.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

FIG. 1 shows a circuit switching device provided by an embodiment of the present invention, which is suitable for one-to-one communication between n first devices 8a and m second devices 8b. Referring to FIG. 1 , the line switching device includes n first-band switches 1 , m second-band switches 2 and several switching lines 3 .

Each of the first band switches 1 and each of the second band switches 2 includes a switch body (not shown in FIG. 1 ), a fixed knife group, a plurality of movable knife groups and a linkage mechanism (not shown in FIG. 1 ) provided on the switch body ). Each first band switch 1 includes at least m movable cutter groups, and each second band switch 2 includes at least n movable cutter groups. The number of fixed knives 11 in the fixed knife group is the same as the number of movable knives 12 in each movable knife group. The number of stationary blades 11 is equal to the number of switching lines 3 required for communication between the first device 8a and the second device 8b.

The fixed knife group is movably connected with several movable knife groups through a linkage mechanism, and the fixed knife group is connected with one movable knife group at a time. When the fixed knife group is connected with the movable knife group, the kth fixed knife 11 in the fixed knife group is connected with the kth movable knife 12 in the connected movable knife group, k is a positive integer, and k is less than or equal to the fixed knife quantity.

The fixed blade 11 of the ith first band switch 1 among the n first band switches 1 is connected to the i th first device 8a among the n first devices 8a, and the jth second device 8a among the m second band switches 2 The fixed blade 11 of the band switch 2 is connected to the j-th second device 8b among the m second devices 8b. The j-th group of movable blades 12 of the i-th first waveband switch 1 is connected to the i-th group of movable blades 11 of the j-th second waveband switch 2 through the exchange line 3 . n≥2, m≥2. i and j are both positive integers, n≥i≥2, m≥j≥2.

In this embodiment, one-to-one communication may mean that at the same time, one first device 8a can only communicate with one second device 8b, and similarly, at the same time, one second device 8b can only communicate with one first device 8b. Device 8a communicates.

The first device 8 a is connected to the line switching device through the fixed blade group of the first band switch 1 , and the second device 8 b is connected to the line switching device through the fixed blade group of the second band switch 2 . Each of the first band switches 1 is configured with a number of movable knife groups that are the same as the number of the second equipment 8b. In this way, each movable blade group of the first waveband switch 1 is correspondingly connected to a second device 8b, and each movable blade group is correspondingly connected to a different second device 8b. Likewise, each second band switch 2 is configured with the same number of movable knife groups as the first device 8a. In this way, each movable blade group of the second waveband switch 2 is correspondingly connected to a first device 8a, and each movable blade group is correspondingly connected to a different first device 8a.

According to the corresponding relationship between each movable blade group and the equipment, the movable blade 12 of each first waveband switch 1 and the movable blade 12 of each second waveband switch 2 are connected through exchange lines. It is assumed that the first device 8a-W is connected to the line switching device through the fixed blade set of the first band switch 1-W, and the second device 8b-Z is connected to the circuit switching device through the fixed blade set of the second band switch 1-Z. Since the fixed knife group of each band switch is connected with one movable knife group at a time. When the fixed knife group of the first waveband switch 1-W is connected with the movable knife group corresponding to the second equipment 8b-Z, and the fixed knife group of the second waveband switch 1-Z is connected with the movable knife group corresponding to the first equipment 8a-W When connected, the communication line between the first device 8a-W and the second device 8b-Z will be successfully established. At this point, the first device 8a-W and the second device 8b-Z can communicate.

The line switching device is only composed of several band switches and switching lines. The whole device does not need power supply, has a simple structure, high reliability, low cost, convenient operation and use, and can be widely used in small-scale communication systems, such as local applications in large-scale communication systems. , and especially suitable for some emergency occasions, with strong practicability.

Optionally, the first device may be a terminal device (also called a user terminal), including a voice terminal, a digital newspaper terminal and a data link terminal.

The second device may be a channel device including a shortwave transceiver, a shortwave radio, a sea radio, a high frequency telephone and an air radio.

Based on the current development status of the band switch, preferably, 10≧n, 10≧m.

Preferably, referring to FIG. 2 , both the first band switch 8a and the second band switch 8b may further include a knob 4, which is fixedly connected to the linkage mechanism; when the knob 4 is rotated, the fixed knife group is movably connected to several movable knife groups. The knob 4 includes several gears, and the gears are the positions of the knob 4 on the rotation track. When the knob 4 is rotated to different gears, the fixed knife group is connected with different movable knife groups; the knob 4 of the first band switch includes m gear, the knob 4 of the second band switch includes n gears.

Among them, the knob 4 realizes the conversion of different gears through the gear switching mechanism. It can be understood that, in the band switch, the number of gear positions of the band switch is the same as the number of the movable knife groups of the band switch.

Preferably, referring to FIG. 2 , the line switching device further includes a panel 5 . The panel 5 is provided with n first mounting holes and m second mounting holes. The knob 4 of the s-th first-band switch is exposed in the s-th first installation hole; the knob 4 of the t-th second-band switch is exposed in the t-th second installation hole, s and t are both positive integers, n≥ s≥2, m≥t≥2.

Preferably, the panel area under the i-th first installation hole is provided with the identification 8a1 of the i-th first device 8a, and the panel area above each first mounting hole is provided with the identification 8b1 of each second device 8b, The panel area under the j-th second mounting hole is provided with the logo 8b1 of the j-th second device 8b, and the panel area above each second mounting hole is provided with the logo 8a1 of each first device 8a. The first installation The logo 8b1 of the second device 8b set in the panel area above the hole is set in a one-to-one correspondence with the gear position of the knob 4 in the first installation hole, and the logo 8a1 of the first device 8a set in the panel area above the second installation hole corresponds to the first device 8a. The gear positions of the knobs 4 in the two installation holes are set in a one-to-one correspondence.

Specifically, the identification 8a1 of each first device 8a set in the panel area above the second installation hole is set in a one-to-one correspondence with the gear position of the knob 4 of the second band switch 2, and each The identification 8b1 of the second device 8b corresponds to the gear position of the knob 4 of the first band switch 1 one-to-one.

Referring to FIG. 3 , the line switching device further includes a socket 6 . The socket 6 includes a socket body 61 and a plurality of probes 62 arranged on the socket body 61. Each probe 62 is connected to each fixed blade 11. The fixed blade 11 connected to each probe 62 is different. The two devices 8b are respectively connected to the fixed knife 11 through the socket 6 . The probe 62 can be connected to the fixed blade 11 through a wire.

Specifically, the first device 8a is connected to the corresponding fixed blade 11 of the first waveband switch 1 through the socket 6 , and the second device 8b is connected to the corresponding fixed blade 11 of the second waveband switch 2 through the socket 6 .

The equipment is connected to the line switching equipment through the socket 6. When the number of fixed blades 11 is particularly large, the tedious operation of connecting the equipment to the fixed blades 11 one by one is avoided, and the connection and disassembly between the equipment and the circuit switching equipment are easy. In addition, if there is a problem with the connection between the equipment and the line switching equipment, it is also convenient for maintenance.

Optionally, referring to FIG. 4 , the linkage mechanism includes a rod 14 and several conductive sheets 15 . The rod 14 is rotatably fixed to the switch body, the knob 4 is mounted on one end of the rod 14 , and a plurality of conductive sheets 15 are mounted on the other end of the rod 14 . The number of the conductive sheets 15 is the same as the number of the fixed blades 11 . The k-th fixed blade 11 is movably connected to the k-th conductive sheet 15 , the conductive sheet 15 is provided with contact claws, and the k-th movable blade 12 in each movable blade group is arranged on the contact claw of the k-th conductive sheet 15 On the movement track, when the knob 4 is rotated to different gears, the contact claw of the k-th conductive sheet 15 is connected to different movable knives 12 , k is a positive integer, and k is less than or equal to the number of the fixed knives.

It should be noted that the structure of the above linkage mechanism is only an example, and the present embodiment does not limit the structure of the linkage mechanism, and any other structure of the linkage mechanism can also be used.

Optionally, the band switch is a multi-layer band switch. Preferably, the multi-layer band switch can use the KX03C series.

Band switches are generally named after the number of gears (gears are also called bands) plus the number of fixed knives. For example, 4 gears are represented as 4W, 10 fixed knives are represented as 10D, and a band switch with 4 gears and 10 fixed knives can be Indicated as a 4W10D band switch. It is easy to know that the 4W10D band switch includes 10 conductive sheets 15 and 4 movable knife groups. Each of the four movable knife groups includes 10 movable knives 12 , for a total of 40 movable knives 12 .

The structure of the multi-layer band switch is described below by taking the 4W10D multi-layer band switch as an example.

The switch body of the 4W10D multi-layer band switch is a 5-layer structure, and each layer is provided with 2 conductive sheets 15 , 2 fixed blades 11 and 8 movable blades 12 .

Each layer is provided with a ring base 13 fixed on the switch body, and two fixed knives 11 and eight movable knives 12 are installed on the ring base 13 . Specifically, the length directions of the fixed knife 11 and the movable knife 12 may overlap with the radius of the annular base 13 . The length directions of the two fixed knives 11 are on the same diameter of the annular base 13 . That is, the two fixed knives 11 divide the ring base 13 into two semicircles, and four movable knives 12 and one fixed knives are respectively arranged in each semicircle. A contact point 11a extends from one end of the stationary blade 11 .

The conductive sheet 15 may be a semi-circular conductive sheet. One conductive sheet 15 is disposed corresponding to one of the semicircles, and the other conductive sheet 15 is disposed corresponding to the other semicircle. The two conductive sheets 15 can be installed on the conductive sheet mounting base, and the conductive sheet mounting base is sleeved on the rod 14 . The lever 14 is rotatably fixed to the switch body. The conductive piece 15 is connected to the contact 11a of the fixed knife 11 on the corresponding semicircle, the conductive piece 15 is provided with a contact claw 15a, and the movable knife 12 on the semicircle is arranged on the movement track of the contact claw 15a corresponding to the conductive piece 15.

Specifically, when the rotation of the knob 4 drives the rod 14 to rotate (the rotation direction is shown by the arrow in the figure), the rod 14 will also drive the conductive sheet 15 to rotate through the conductive sheet mounting base. When the conductive piece 15 rotates, the contact 11a of the corresponding fixed knife 11 is continuously and movably connected to the conductive piece 15, and the contact claws 15a of the conductive piece 15 will be connected with different movable knives 12 arranged on the corresponding movement track.

Assuming that the layer close to knob 4 is the first layer (see Figure 4), the two fixed knives arranged in the first layer are 1A0 and 1B0 respectively, and four movable knives 1A1, 1A2, 1A3 and 1A4 are arranged corresponding to 1A0; corresponding to 1B0 Four movable knives 1B1, 1B2, 1B3 and 1B4 are arranged.

The 2 fixed knives arranged in the second layer are 2A0 and 2B0 respectively, 4 movable knives 2A1, 2A2, 2A3 and 2A4 are arranged corresponding to 2A0; 4 movable knives 2B1, 2B2, 2B3 and 2B4 are arranged corresponding to 2B0.

The 2 fixed knives arranged in the third layer are 3A0 and 3B0 respectively, 4 movable knives 3A1, 3A2, 3A3 and 3A4 are arranged corresponding to 3A0; 4 movable knives 3B1, 3B2, 3B3 and 3B4 are arranged corresponding to 3B0.

The 2 fixed knives arranged in the 4th layer are 4A0 and 4B0 respectively, and 4 movable knives 4A1, 4A2, 4A3 and 4A4 are arranged corresponding to 4A0; 4 movable knives 4B1, 4B2, 4B3 and 4B4 are arranged corresponding to 4B0.

The 2 fixed knives arranged in the 5th floor are 5A0 and 5B0 respectively, 4 movable knives 5A1, 5A2, 5A3 and 5A4 are arranged corresponding to 5A0; 4 movable knives 5B1, 5B2, 5B3 and 5B4 are arranged corresponding to 5B0.

Wherein, the multi-layer band switch includes a gear switching mechanism, and the knob 4 realizes the switching of different gears through the gear switching mechanism. The gear shifting mechanism includes a toothed plate, a ball spring assembly and a stop pin. The toothed disc is sleeved on the rod 14, and the number of tooth openings of the toothed disc is the same as the number of gears. The marble spring assembly includes a marble and a spring pressure plate. The marble is fixed on one end of the spring pressing plate and is in contact with the toothed disc, and the size of the marble matches the size of the tooth gap. The other end of the spring pressing plate is fixed on the switch body. One end of the stop pin is fixed on the switch body, and the other end of the stop pin extends out, so as to limit the chain ring when the chain ring rotates to a specified position (eg, the end of the gear). Specifically, by manually rotating the knob 4, the rod 14 is driven to rotate, and the rod 14 drives the conductive sheet 15 and the toothed plate to rotate. The spring on the spring pressure plate is located between the pressure plate and the toothed plate and is in a compressed state. When the toothed plate rotates against the force of the spring, the marble will be stuck in the tooth gap. At this time, the transmission from one gear to another is realized. conversion to ensure the accuracy of the gear switching angle. The stop pin ensures that the number of gears is not exceeded when changing gears.

As a preferred first embodiment, the line switching device includes four first-band switches 1 and four second-band switches 2, and both the first-band switches 1 and the second-band switches 2 include four movable blade groups. In addition, the number of fixed knives 11 in the fixed knife group, the number of movable knives 12 in each movable knife group, and the number of exchange lines required for communication between the i-th first device 8a and the j-th second device 8b are all is 10. The circuit switching device is suitable for one-to-one communication between four first devices 8a and four second devices 8b.

Specifically, in the first embodiment, the first band switch 1 and the second band switch 2 are both 4W10D multilayer band switches. Preferably, the model of the 4W10D multilayer band switch can be KX03C-4W10D-Y20.

Preferably, four knobs 4 of the first band switch 1 and four knobs 4 of the second band switch 2 are arranged on the panel 5 in two rows, one row is the knob 4 of the first band switch 1, and the other row is the second band switch Knob 4 of switch 2.

Preferably, the 10 switching lines between the i-th first device in the four first devices 8a and the j-th second device in the four second devices 8b may include: Lines, 2 lines for transmitting balanced audio signals, 1 line for transmitting Push-to-Talk (PTT) signals, 1 line for transmitting ready line numbers, 1 line A line for transmitting encrypted signals, a line for transmitting de-encrypted signals, a ground line, and a backup line.

Among them, the ready signal refers to the status signal sent unilaterally or bilaterally to the other party by the one-to-one communication devices connected to the circuit switching device after establishing the connection line between them. The status signal is used to indicate that the signal sender is available. state. After the devices receive the ready signal from the other party, the two devices begin to communicate. For example, in the case that the one-to-one communication equipment is a radio equipment (such as an air station) and a terminal equipment (such as a voice terminal), after the radio equipment is powered on normally, it sends a ready signal to the terminal equipment, indicating that Radio equipment is available. After the terminal device receives the ready signal, the terminal device starts to communicate with the radio device.

For example, in scenarios such as a ship's communication room or land communication station, there are 4 terminal devices (such as 2 voice terminals and 2 digital newspaper terminals) and 4 channel devices (such as 2 short-wave radio stations, 1 high-frequency telephone and 1 air-to-air station) to realize one-to-one communication between terminal equipment and channel equipment.

At this time, connect the terminal device and the channel device to the corresponding socket 6 of the line switching device, and perform bidirectional selection through the channel device and terminal device selection knob on the panel 5, so as to realize the one-to-one between the corresponding terminal device and the corresponding channel device. A circuit-switched connection avoids line connections between one terminal device and multiple channel devices or between multiple terminal devices and one channel device.

Referring to Figures 5a-5j, it is assumed that the band switches accessed by the four terminal devices are UK1, UK2, UK3, and UK4 in sequence, and the band switches accessed by the four channel devices are CK1, CK2, CK3, and CK4 in sequence. The fixed knives of each band switch are 1A0, 1B0, 2A0, 2B0, 3A0, 3B0, 4A0, 4B0, 5A0, 5B0; the movable knives of each band switch are 1A1~1A4, 1B1~1B4, 2A1~2A4, 2B1~2B4, 3A1~3A4, 3B1~3B4, 4A1~4A4, 4B1~4B4, 5A1~5A4, 5B1~5B4. All line-switched connections between the band switches are shown in Figures 5a-5j. Specifically, Fig. 5a shows the connection mode of the first line of the 10 lines between the movable knives of each band switch, and Fig. 5b shows the second line of the 10 lines between the movable knives of each band switch. Figure 5j shows the connection mode of the 10th line among the 10 lines between the movable knives of each band switch.

Terminal equipment and channel equipment are connected to their respective band switches through sockets 6 on the line switching equipment. Since the 10 lines between the terminal equipment and the channel equipment are respectively connected to the fixed blades (1A0, 1B0, 2A0, 2B0, 3A0, 3B0, 4A0, 4B0, 5A0, 5B0) of the corresponding band switches through the socket 6, each The number of lines between the socket 6 and the respective connected band switches is also 10, specifically, the number of lines between the socket 6 and the fixed blade of the band switch is 10. The connection mode of the 10 lines between the socket 6 and the band switch is shown in Figure 6. Among them, the 10 lines between the socket 6 connected to the channel device 1 and the band switch CK1 are C1-1 to C1-10 in sequence, and the 10 lines between the socket 6 connected to the channel device 2 and the band switch CK2 are in sequence C2-1～C2-10, 10 lines between socket 6 connected to channel device 3 and band switch CK3 are C3-1～C3-10 in sequence, between socket 6 connected to channel device 4 and band switch CK4 The 10 lines are C4-1 to C4-10 in sequence. The 10 lines between the socket 6 connected to the terminal device 1 and the band switch UK1 are U1-1 to U1-10 in sequence, and the 10 lines between the socket 6 connected to the terminal device 2 and the band switch UK2 are U2- 1 to U2-10, the 10 lines between the socket 6 connected to the terminal device 3 and the band switch UK3 are U3-1 to U3-10 in sequence, and the 10 lines between the socket 6 connected to the terminal device 4 and the band switch UK4 The lines are U4-1 to U4-10 in sequence.

As a preferred second embodiment, the line switching device includes five first-band switches 1 and five second-band switches 2 . Both the first waveband switch 1 and the second waveband switch 2 include 5 movable knife groups. In addition, the number of fixed knives 11 in the fixed knife group, the number of movable knives 12 in each movable knife group, and the number of exchange lines required for communication between the i-th first device 8a and the j-th second device 8b are all is 16. The circuit switching device is suitable for one-to-one communication between five first devices 8a and five second devices 8b.

Specifically, in the second embodiment, the first band switch 1 and the second band switch 2 are both 5W16D multilayer band switches.

Similar to the first embodiment, in the second embodiment, five knobs 4 of the first band switch 1 and five knobs 4 of the second band switch 2 are arranged on the panel 5 in two rows, and one row is the first band switch 1 The knob 4 of the other row is the knob 4 of the second band switch 2.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (9)

1. A circuit switching device, suitable for one-to-one communication between n first devices and m second devices, wherein the circuit switching device comprises n first band switches, m second devices Band switch and several switching lines; Each first waveband switch and each second waveband switch include a switch body, a fixed knife group, a plurality of movable knife groups and a linkage mechanism arranged on the switch body, and each of the first waveband switches includes at least m A movable knife group, each of the second waveband switches includes at least n movable knife groups; the number of fixed knives in the fixed knife group is the same as the number of movable knives in each of the movable knife groups, and the number of the fixed knives is the same as the number of movable knives in each movable knife group. The number is equal to the number of exchange lines required for communication between the first device and the second device; the fixed knife group is movably connected to the several movable knife groups through the linkage mechanism, and the fixed knife group is once Connect with one of the movable knife groups; when the fixed knife group is connected with the movable knife group, the kth fixed knife in the fixed knife group is connected with the kth movable knife in the connected movable knife group, k is a positive integer, and k is less than or equal to the number of the fixed knives; The fixed blade of the i-th first-band switch of the n first-band switches is connected to the i-th first device of the n first-band switches, and the m second-band switches of the m second-band switches. The fixed blades of the j second-band switches are connected to the j-th second device among the m second devices; the j-th group of movable blades of the i-th first-band switch pass through the exchange line Connect with the i-th movable knife of the j-th second band switch; n≥2, m≥2, i and j are both positive integers, n≥i≥2, m≥j≥2, Both the first waveband switch and the second waveband switch further include a knob, the knob is fixedly connected to the linkage mechanism, and when the knob is rotated, the fixed knife group is movably connected to the plurality of movable knife groups , the knob includes several gears, the gears are the positions of the knob on the rotation track, and when the knob is rotated to different gears, the fixed knife group is connected with different movable knife groups; The knob of the first band switch includes m of the gears, and the knob of the second band switch includes n of the gears, The linkage mechanism includes a rod and a number of conductive sheets. In the same band switch, the rod is rotatably fixed to the switch body, the knob is mounted on one end of the rod, and the several conductive sheets are mounted on the rod. At the other end of the wire, the number of the conductive strips is the same as the number of the fixed knives, the kth fixed knife is movably connected to the kth conductive strip, the conductive strips are provided with contact claws, and each of the The k-th movable knife in the movable knife group is arranged on the movement track of the contact claw of the k-th conductive sheet. When the knob is rotated to a different gear, the contact claw of the k-th conductive sheet Connect with different movable knives. 2. The circuit switching device according to claim 1, wherein the circuit switching device further comprises a panel; The panel is provided with n first mounting holes and m second mounting holes, The knob of the s-th first band switch is exposed in the s-th first installation hole; the knob of the t-th second band switch is exposed in the t-th second installation hole, both s and t are is a positive integer, n≥s≥2, m≥t≥2. 3. The line switching device according to claim 2, wherein the panel area under the i-th first installation hole is provided with the i-th first device identification, and each of the first The panel area above the mounting hole is provided with the logo of each of the second devices, the panel area below the j-th second mounting hole is provided with the logo of the j-th second device, and each of the The panel area above the two installation holes is provided with the identification of each of the first devices, and the identification of the second device set in the panel area above the first installation holes is the same as the gear position of the knob in the first installation hole. In a corresponding setting, the identification of the first device set in the panel area above the second installation hole is set in a one-to-one correspondence with the gear position of the knob in the second installation hole. 4 . The circuit switching device according to claim 1 , wherein the circuit switching device further comprises a socket, and the socket comprises a socket body and a plurality of probes arranged on the socket body, and each probe A needle is connected to each of the fixed blades, and each of the probes is connected to a different fixed blade, and the first device and the second device are respectively connected to the fixed blade through the socket. 5. The circuit switching device according to claim 2, wherein the circuit switching device comprises four switches of the first band and four switches of the second band; Both the first waveband switch and the second waveband switch include 4 movable knife groups, the number of fixed knives in the fixed knife group, the number of movable knives in each of the movable knife groups, and the i-th movable knife group. The number of the exchange lines required for communication between the first device and the jth second device is all 10. 6. The circuit switching device according to claim 5, characterized in that, The four knobs of the first waveband switch and the four knobs of the second waveband switch are arranged on the panel in two rows, one row is the knob of the first waveband switch, and the other row is the second waveband switch switch knob. 7. The circuit switching device according to claim 5, wherein the i-th first device among the 4 first devices and the j-th second device among the 4 second devices The 10 switching lines between include: 2 lines for transmitting balanced audio signals, 2 lines for transmitting balanced audio signals, 1 line for transmitting push-to-talk signals, 1 line for transmitting ready line numbers, 1 line A line for transmitting encrypted signals, a line for transmitting de-encrypted signals, a ground line, and a backup line. 8. The circuit switching device according to any one of claims 1 to 4, wherein the circuit switching device comprises five switches of the first band and five switches of the second band; Both the first waveband switch and the second waveband switch include 5 of the movable knife groups, the number of fixed knives in the fixed knife group, the number of movable knives in each of the movable knife groups, and the i-th movable knife group. The number of the switching lines required for communication between the first device and the jth second device is 16. 9. The circuit switching device according to any one of claims 1 to 4, characterized in that, The first device includes a voice terminal, a digital newspaper terminal and a data link terminal; The second equipment includes a short-wave transceiver, a short-wave radio, a sea radio, a high-frequency telephone and an air radio.

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