Automatic construction method of extensible multi-channel array receiver

Abstract

The invention discloses an automatic construction method of an extensible multi-channel array receiver. The automatic construction method comprises the following steps: step 1, constructing the extensible multi-channel array receiver; step 2, power-on initialization is carried out; 3, the basic module issues a configuration query instruction to the extension module through a downlink instruction control bus; step 4, the extension module detects load information through local oscillator coupling and a load detection circuit, waits for a rear-stage extension module to upload configuration information when detecting that a load exists, and then uploads the configuration information to a front-stage extension module after converging the configuration information; when no load is detected, configuration information is directly uploaded to a preceding-stage extension module; 5, the basic module calls a preset control and management program according to the configuration information after receiving the configuration information which is counted, gathered and uploaded by all the extension modules step by step; and 6, completing automatic construction, and waiting for an external instruction. The method has the advantages that the number of channels and the frequency coverage range can be expanded by increasing new modules, and repeated input of hardware cost is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of receivers, and in particular to an automatic construction method of an expandable multi-channel array receiver. Background Art

[0002] With the rapid development of wireless communication and radar technology, the spectrum range and technical solutions of electromagnetic waves used by humans are rapidly expanding. Radio monitoring and direction-finding equipment needs to keep up with changes in applications to match new monitoring and management needs. Frequent replacement of basic equipment will consume a lot of manpower, material and financial resources. The construction and maintenance cycle of monitoring and direction-finding sites will also be prolonged due to slow equipment replacement and long maintenance time, resulting in interruption of the work of monitoring and direction-finding sites.

[0003] Disadvantages of existing technology: The existing receivers have relatively fixed receiving signal frequencies and channels, making it difficult to freely expand the frequencies and channels, and cannot meet the needs of multiple scenarios. Summary of the invention

[0004] The present invention provides an automatic construction method for an expandable multi-channel array receiver, which realizes the automatic construction function of the expandable multi-channel array receiver, and can expand the number of channels and frequency coverage by adding new modules when necessary, thereby avoiding repeated investment in hardware costs.

[0005] To achieve the above object, the present invention provides an automatic construction method for an expandable multi-channel array receiver, the key of which is to include the following steps:

[0006] Step 1: constructing an expandable multi-channel array receiver, wherein the expandable multi-channel array receiver comprises a receiver body, wherein the receiver body is provided with a basic module and N expansion modules, wherein the N expansion modules comprise at least one channel expansion module and at least one frequency expansion module;

[0007] Step 2: The scalable multi-channel array receiver is powered on and initialized;

[0008] Step 3: The basic module sends a configuration query command to the expansion module via a downlink command control bus;

[0009] Step 4: The expansion module detects load information through local oscillator coupling and load detection circuit. When a load is detected, the expansion module waits for the subsequent expansion module to upload configuration information, and then aggregates the configuration information and uploads it to the previous expansion module or the basic module; when no load is detected, the configuration information is directly uploaded to the previous expansion module;

[0010] Step 5: After the basic module receives the configuration information counted, aggregated, and uploaded by all the extension modules step by step, it calls the preset control and management program according to the configuration information;

[0011] Step 6: The scalable multi-channel array receiver completes automatic construction and waits for external instructions.

[0012] The basic module is used for power conversion, receiving external control instructions, generating local oscillator signals, controlling frequency scanning of other channel modules, etc.

[0013] Each expansion module uploads its configuration information to the basic module via the upload management data line; the basic module decides how to manage and control each expansion module according to the configuration information of each module.

[0014] Through the above design, the automatic construction function of the scalable multi-channel array receiver is realized, so that the radio monitoring and direction finding equipment can expand the number of channels and frequency coverage by adding new modules when needed, avoiding repeated investment in hardware costs;

[0015] At the same time, it has the functions of automatically detecting, identifying, and managing unit modules, avoiding the need to redevelop and reconfigure the control software and local oscillator drive signal after the hardware configuration is changed, and realizing the functions of rapid expansion, changing the number of channels and the operating frequency range, which is also conducive to the rapid repair and replacement of equipment failures in the later stage;

[0016] Through its adaptive configuration change function, existing idle hardware modules can be used to quickly and flexibly build new receivers, thereby improving hardware utilization.

[0017] Preferably, in step 1, the scalable multi-channel array receiver includes a hardware structure and a corresponding program circuit software structure;

[0018] The program circuit software structure includes a first power conditioning circuit provided in the basic module and a second power conditioning circuit provided in the expansion module, wherein the first power conditioning circuit is connected to each second power conditioning circuit via a power bus;

[0019] The basic module is also provided with a first digital control circuit, and the expansion module is also provided with a second digital control circuit, the first digital control circuit is connected to each second digital control circuit via a downline instruction data bus, and the rear-stage digital control circuit is also connected to the front-stage digital control circuit via an uplink management data line;

[0020] The basic module is also provided with at least one bandwidth local oscillator signal source, and the extension module is also provided with a local oscillator coupling and load detection circuit. The bandwidth local oscillator signal source is connected to the first local oscillator coupling and load detection circuit, and each local oscillator coupling and load detection circuit is connected in series in sequence.

[0021] The basic module provides standard power to each expansion module through a power bus;

[0022] The second digital control circuit stores configuration information such as the type, operating frequency range, and load connection status of the corresponding extension module. Each extension module uploads the configuration information of each module to the basic module through the upload management data line to realize functions such as automatic configuration confirmation and health management.

[0023] Preferably, in step 2, the first power conditioning circuit in the basic module supplies power to the second power conditioning circuit in each expansion module via a power bus;

[0024] In step 3, the first digital control circuit in the basic module sends a configuration query instruction to the second digital control circuit in each expansion module via the offline instruction data bus.

[0025] Preferably, in step 4, the local oscillator coupling and load detection circuit in the current extension module detects load information, and when a load is detected, waits for the subsequent second digital control circuit to upload configuration information to the current second digital control circuit; after receiving the configuration information uploaded by the subsequent second digital control circuit, the current second digital control circuit aggregates the subsequent configuration information with the current configuration information, and then uploads it to the previous second digital control circuit or the first digital control circuit;

[0026] When no load is detected, the current second digital control circuit directly uploads the current configuration information to the previous second digital control circuit.

[0027] Preferably, in step 5, after receiving the configuration information counted, aggregated and uploaded by all the second digital control circuits step by step, the first digital control circuit in the basic module calls the preset control and management program according to the configuration information.

[0028] After the above-mentioned step-by-step statistics, aggregation, and uploading, the complete configuration information is uploaded to the basic module. The basic module matches the control program that meets the current configuration according to the configuration information to complete the automatic construction of the whole machine.

[0029] Preferably, in step 4 and step 5, the configuration information includes but is not limited to the type of extension module, the operating frequency range, and the load connection status.

[0030] Preferably, the hardware structure is the receiver body, which is a layered structure, in which a basic module and N expansion modules are arranged in sequence from bottom to top, the basic module and the expansion module are rectangular structures, and mounting seats are arranged at four top corners, mounting holes are opened on the mounting seats, the basic module and all expansion modules are stacked together in sequence, and the mounting holes at the four corners are respectively penetrated and fixed by the same mounting column to form the layered structure.

[0031] The modules are fixed together by mounting columns, which facilitates assembly and disassembly of the modules.

[0032] Preferably, the basic module is provided with a basic module box body, an upper installation cavity is opened at the upper part of the basic module box body, a first PCB board is installed in the upper installation cavity, and the first PCB board is installed on the inner side of the upper cover plate; a lower installation cavity is opened at the lower part of the basic module box body, a second PCB board is installed in the lower installation cavity, and the second PCB board is buckled through the lower cover plate;

[0033] The basic module box body, the upper cover plate and the lower cover plate can protect the internal circuit of the basic module and prevent the basic module function from being affected by external factors.

[0034] The first power conditioning circuit and the first digital control circuit are arranged on the second PCB board;

[0035] A power supply and control signal feed-in socket is installed on the second PCB board; a socket groove is provided on the lower cover plate corresponding to the power supply and control signal feed-in socket, the power supply and control signal feed-in socket is located in the socket groove, a socket is provided on the side wall of the basic module box body, the power supply and control signal feed-in socket is opposite to the socket, and the two are tightly fitted;

[0036] The basic module is connected to an external control and power supply module via the power supply and control signal feed socket;

[0037] At least one of the bandwidth local oscillator signal sources is arranged on the first PCB board, a local oscillator signal feed terminal group, a power supply and a control signal feed socket are arranged on the first PCB board, a corresponding number of signal feed holes are opened on the upper cover plate, and the local oscillator signal feed terminal group, the power supply and the control signal feed socket are respectively extended out of the corresponding signal feed holes and connected to the subsequent expansion module.

[0038] By setting the signal feed-in / feed-out terminals, the electrical connection between the basic module and the external control and power supply module and the subsequent expansion module is realized.

[0039] Preferably, the channel expansion module is provided with a channel module box body, the upper surface of the channel module box body is provided with a first mounting groove, a channel PCB board is mounted in the first mounting groove, and the channel PCB board is mounted on the inner side of the channel module cover plate;

[0040] The channel PCB board is provided with the second power conditioning circuit, the second digital control circuit, the local oscillator coupling and load detection circuit, the basic frequency conversion circuit and the intermediate frequency interface circuit;

[0041] The lower surface of the channel PCB board is provided with a local oscillator signal feeding terminal group and a power supply and control signal feeding pin, and the bottom of the channel module box body is provided with a plurality of first channel signal vias, and the local oscillator signal feeding terminal group and the power supply and control signal feeding pin are respectively extended out of the corresponding first channel signal vias and connected to the previous module;

[0042] The upper surface of the channel PCB board is provided with an intermediate frequency signal feed terminal, a local oscillator signal feed terminal group, a radio frequency input terminal, an intermediate frequency output terminal, a power supply and a control signal feed socket;

[0043] The channel module cover plate is provided with a corresponding second channel signal through hole, and the intermediate frequency signal feed-in terminal, the local oscillator signal feed-out terminal group, the power supply and control signal feed-out sockets are respectively extended out of the corresponding second channel signal through holes and connected to the subsequent module;

[0044] A third channel signal via hole is correspondingly opened on the side wall of the channel module box body, the RF input terminal extends out of the third channel signal via hole and is connected to the receiving antenna, and the intermediate frequency output terminal extends out of the third channel signal via hole and is connected to an external A / D acquisition device.

[0045] The channel extension module is provided with an intermediate frequency signal feeding terminal for accessing the spread spectrum intermediate frequency signal of the frequency extension module.

[0046] Preferably, the frequency extension module is provided with a frequency module box body, a second mounting groove is provided on the upper surface of the frequency module box body, a frequency PCB board is installed in the second mounting groove, and the frequency PCB board is installed on the inner side of the frequency module cover plate;

[0047] The frequency PCB board is provided with the second power conditioning circuit, the second digital control circuit, the local oscillator coupling and load detection circuit, the spread spectrum frequency conversion circuit and the intermediate frequency interface circuit;

[0048] The lower surface of the frequency PCB board is provided with an intermediate frequency signal feed-out terminal, a local oscillator signal feed-in terminal group, and a power supply and control signal feed-in pin;

[0049] A first frequency signal through hole is provided at the bottom of the frequency module box body, and the intermediate frequency signal feed-out terminal, the local oscillator signal feed-in terminal group, the power supply and control signal feed-in pins extend out of the corresponding first frequency signal through holes respectively and are connected to the previous module;

[0050] The upper surface of the frequency PCB board is provided with a local oscillator signal feed terminal group, an intermediate frequency signal feed terminal, a power supply and control signal feed socket, and a radio frequency input terminal;

[0051] The frequency module cover plate is provided with a corresponding second frequency signal through hole, and the local oscillator signal feed terminal group, the intermediate frequency signal feed terminal, the power supply and the control signal feed socket are respectively extended out of the corresponding second frequency signal through hole and connected to the subsequent module;

[0052] The frequency module box body is provided with a third frequency signal through hole, and the radio frequency input terminal extends out of the third frequency signal through hole and is connected to a spread spectrum receiving antenna.

[0053] The frequency extension module is equipped with an intermediate frequency signal feed-in / feed-out terminal. The feed-out terminal is used to output the spread spectrum intermediate frequency signal to the channel module, and the feed-in terminal is used to access the spread spectrum intermediate frequency signal of other frequency extension modules. The intermediate frequency interface adopts a switch-selected connection mode, and the intermediate frequency output of the corresponding frequency band is selected in real time when performing spectrum scanning.

[0054] The beneficial effects of the present invention are as follows: the number of channels and the frequency coverage can be expanded by adding new modules, thus avoiding repeated investment in hardware costs; it has the functions of automatically detecting, identifying, and managing unit modules, thus avoiding the need to redevelop and reconfigure the control software and the local oscillator drive signal after the hardware configuration is changed, thus achieving the functions of rapidly expanding and changing the number of channels and the operating frequency range, and facilitating the rapid repair and replacement of equipment failures in the later stages; through its function of adaptive configuration changes, existing idle hardware modules can be utilized to rapidly and flexibly construct a new receiver, thus improving the utilization rate of the hardware. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a schematic diagram of the process of the present invention;

[0056] Figure 2 It is a logical structure diagram of the present invention;

[0057] Figure 3 It is a local oscillator coupling and load detection circuit diagram in the embodiment;

[0058] Figure 4 It is a schematic diagram of the overall structure of the present invention in the embodiment;

[0059] Figure 5 It is an exploded diagram of the basic module structure in the embodiment;

[0060] Figure 6 An exploded diagram of the channel expansion module structure in the embodiment;

[0061] Figure 7 It is an exploded diagram of the frequency extension module structure in the embodiment. DETAILED DESCRIPTION

[0062] The present invention is further described in detail below in conjunction with the accompanying drawings and specific examples. The following examples or drawings are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0063] like Figure 1 As shown: An automatic construction method of an expandable multi-channel array receiver includes the following steps:

[0064] Step 1: constructing an expandable multi-channel array receiver, wherein the expandable multi-channel array receiver comprises a receiver body, wherein the receiver body is provided with a basic module and N expansion modules, wherein the N expansion modules comprise at least one channel expansion module and at least one frequency expansion module;

[0065] Step 2: The scalable multi-channel array receiver is powered on and initialized;

[0066] Step 3: The basic module sends a configuration query command to the expansion module via a downlink command control bus;

[0067] Step 4: The expansion module detects load information through local oscillator coupling and load detection circuit. When a load is detected, the expansion module waits for the subsequent expansion module to upload configuration information, and then aggregates the configuration information and uploads it to the previous expansion module or the basic module; when no load is detected, the configuration information is directly uploaded to the previous expansion module;

[0068] Step 5: After the basic module receives the configuration information counted, aggregated, and uploaded by all the extension modules step by step, it calls the preset control and management program according to the configuration information;

[0069] Step 6: The scalable multi-channel array receiver completes automatic construction and waits for external instructions.

[0070] like Figure 2 As shown: In the step 1, the scalable multi-channel array receiver includes a hardware structure and a corresponding program circuit software structure;

[0071] The program circuit software structure includes a first power conditioning circuit provided in the basic module and a second power conditioning circuit provided in the expansion module, wherein the first power conditioning circuit is connected to each second power conditioning circuit via a power bus;

[0072] The basic module is also provided with a first digital control circuit, and the expansion module is also provided with a second digital control circuit, the first digital control circuit is connected to each second digital control circuit via a downline instruction data bus, and the rear-stage digital control circuit is also connected to the front-stage digital control circuit via an uplink management data line;

[0073] The basic module is also provided with at least one bandwidth local oscillator signal source, and the extension module is also provided with a local oscillator coupling and load detection circuit. The bandwidth local oscillator signal source is connected to the first local oscillator coupling and load detection circuit, and each local oscillator coupling and load detection circuit is connected in series in sequence.

[0074] In step 2, the first power conditioning circuit in the basic module supplies power to the second power conditioning circuit in each expansion module via a power bus.

[0075] In step 3, the first digital control circuit in the basic module sends a configuration query instruction to the second digital control circuit in each expansion module via the offline instruction data bus.

[0076] In step 4, the local oscillator coupling and load detection circuit in the current expansion module detects load information. When a load is detected, the current second digital control circuit waits for the subsequent second digital control circuit to upload configuration information to the current second digital control circuit. After receiving the configuration information uploaded by the subsequent second digital control circuit, the current second digital control circuit aggregates the subsequent configuration information with the current configuration information, and then uploads it to the previous second digital control circuit or the first digital control circuit.

[0077] When no load is detected, the current second digital control circuit directly uploads the current configuration information to the previous second digital control circuit.

[0078] In step 5, after the first digital control circuit in the basic module receives the configuration information counted, aggregated and uploaded by all the second digital control circuits step by step, it calls the preset control and management program according to the configuration information.

[0079] In step 4 and step 5, the configuration information includes the type of the extension module, the operating frequency range, and the load connection status.

[0080] The frequency extension module is provided with a spread spectrum frequency conversion circuit and a frequency intermediate frequency interface, the spread spectrum frequency conversion circuit is connected to the local oscillator coupling and load detection circuit, the frequency intermediate frequency interface and the spread spectrum receiving antenna, and the frequency intermediate frequency interface is also connected to the rear stage extension module and the front stage extension module;

[0081] The spread spectrum frequency conversion circuit obtains the internal frequency conversion local oscillator and the extended RF input signal from the spread spectrum receiving antenna, and after frequency conversion processing, obtains the first intermediate frequency signal and transmits it to the frequency intermediate frequency interface. The frequency intermediate frequency interface also receives the spread spectrum intermediate frequency signal of the subsequent extension module, and then outputs the spread spectrum intermediate frequency signal of the corresponding frequency band to the previous extension module.

[0082] The frequency extension module is equipped with an intermediate frequency input and output interface. The output interface is used to output the spread spectrum intermediate frequency signal to the channel module, and the input interface is used to access the spread spectrum intermediate frequency signal of other frequency extension modules. The intermediate frequency interface adopts a switch-selected connection mode, and the intermediate frequency output of the corresponding frequency band is selected in real time when performing spectrum scanning.

[0083] The channel expansion module is provided with a basic frequency conversion circuit and a channel intermediate frequency interface, the basic frequency conversion circuit is connected to the local oscillator coupling and load detection circuit, the channel intermediate frequency interface and the receiving antenna, and the channel intermediate frequency interface is also connected to the post-stage expansion module and the external A / D sampling device;

[0084] The basic frequency conversion circuit obtains the internal frequency conversion local oscillator and the RF input signal from the receiving antenna, performs frequency conversion on the two, obtains a second intermediate frequency signal and transmits it to the channel intermediate frequency interface. The channel intermediate frequency interface also receives the intermediate frequency output signal of the subsequent expansion module, and then outputs the intermediate frequency output signal of the corresponding frequency band to the external A / D sampling device.

[0085] The channel extension module is provided with an intermediate frequency input port for accessing the spread spectrum intermediate frequency signal of the frequency extension module.

[0086] like Figure 3 As shown: the local oscillator coupling and load detection circuit includes a local oscillator coupling circuit and a load detection circuit;

[0087] The local oscillator coupling circuit is provided with a DC-blocking capacitor C1, the front end of which obtains the local oscillator signal from the basic module or the local oscillator output from the front-stage coupling of the front-stage extension module, the front end of which is also connected in series with a resistor R1 to be grounded, and the rear end of which is connected to the input end of the radio frequency coupler;

[0088] The first output end of the RF coupler is connected to the input end of the driving amplifier, and the output end of the driving amplifier outputs the internal frequency conversion local oscillator signal to the basic frequency conversion circuit or the spread spectrum frequency conversion circuit; the second output end of the RF coupler is connected to the front end of the DC blocking capacitor C2, and the rear end output of the DC blocking capacitor C2 couples the output local oscillator to the subsequent expansion module;

[0089] The load detection circuit is provided with a bandwidth detection resistor R2, the front end of the bandwidth detection resistor R2 is connected to the rear end of the DC blocking capacitor C2, and the rear end of the bandwidth detection resistor R2 is connected to the second digital control circuit; the second digital control circuit uploads configuration information to the front-stage module via the upload management data line.

[0090] The local oscillator coupling and load detection circuit is used to divide the local oscillator signal or the previous stage coupled output local oscillator into two signals: the current internal frequency conversion local oscillator and the current coupled output local oscillator. The coupled output is provided with a load detection circuit, which determines whether it is still connected to a subsequent stage expansion module by detecting the load condition.

[0091] When it is detected that an expansion module is connected, the level of the load detection signal changes, and the second digital control circuit recognizes that an expansion module is connected to the current module.

[0092] The module identification function is realized by the local oscillator signal feed-in and feed-out ports of the local oscillator coupling circuit and the load detection circuit in cooperation with the data aggregation and upload functions of the second digital control circuit.

[0093] like Figure 4 As shown: the hardware structure is the receiver body, and the receiver body is a layered structure, in which a basic module and N expansion modules are arranged in sequence from bottom to top, and the basic module and the expansion module are rectangular structures, and mounting seats are arranged at the four top corners, and mounting holes are opened on the mounting seats, and the basic module and all the expansion modules are stacked together in sequence, and the mounting holes at the four corners are respectively penetrated and fixed by the same mounting column to form the layered structure.

[0094] like Figure 5 As shown: the basic module is provided with a basic module box body 1b, an upper installation cavity is opened at the upper part of the basic module box body 1b, a first PCB board 2a is installed in the upper installation cavity, and the first PCB board 2a is installed on the inner side of the upper cover plate 1a; a lower installation cavity is opened at the lower part of the basic module box body 1b, a second PCB board 2b is installed in the lower installation cavity, and the second PCB board 2b is buckled through the lower cover plate 1c;

[0095] The first power conditioning circuit and the first digital control circuit are arranged on the second PCB board 2b;

[0096] A power supply and control signal feed socket 4 is installed on the second PCB board 2b; a socket groove is provided on the lower cover plate 1c corresponding to the power supply and control signal feed socket 4, and the power supply and control signal feed socket 4 is located in the socket groove; a socket is provided on the side wall of the basic module box body 1b, and the power supply and control signal feed socket 4 is opposite to the socket, and the two are tightly fitted;

[0097] The basic module is connected to an external control and power supply module via the power supply and control signal feed socket 4;

[0098] At least one of the bandwidth local oscillator signal sources is arranged on the first PCB board 2a, and local oscillator signal feed terminal groups 1, 3, and power and control signal feed sockets 2 are arranged on the first PCB board 2a. A corresponding number of signal feed holes are opened on the upper cover plate 1a, and the local oscillator signal feed terminal groups 1, 3, and power and control signal feed sockets 2 are respectively extended out of the corresponding signal feed holes and connected to the subsequent expansion module.

[0099] like Figure 6 As shown: the channel expansion module is provided with a channel module box body 1f, the upper surface of the channel module box body 1f is provided with a first mounting groove, a channel PCB board 2d is installed in the first mounting groove, and the channel PCB board 2d is installed on the inner side of the channel module cover plate 1g;

[0100] The channel PCB board 2d is provided with the second power conditioning circuit, the second digital control circuit, the local oscillator coupling and load detection circuit, the basic frequency conversion circuit and the intermediate frequency interface circuit;

[0101] The lower surface of the channel PCB board 2d is provided with a local oscillator signal feeding terminal group 16, 18 and a power and control signal feeding pin 22, and the bottom of the channel module box body 1f is provided with a plurality of first channel signal vias, and the local oscillator signal feeding terminal group 16, 18 and the power and control signal feeding pin 22 are respectively extended out of the corresponding first channel signal vias and connected to the previous module;

[0102] The upper surface of the channel PCB board 2d is provided with an intermediate frequency signal feed terminal 14, a local oscillator signal feed terminal group 15, 17, a radio frequency input terminal 19, an intermediate frequency output terminal 20, and a power supply and control signal feed socket 21;

[0103] The channel module cover plate 1g is provided with a corresponding second channel signal through hole, and the intermediate frequency signal feed-in terminal 14, the local oscillator signal feed-out terminal group 15, 17, and the power supply and control signal feed-out socket 21 extend out of the corresponding second channel signal through hole and are connected to the subsequent module;

[0104] A third channel signal via hole is correspondingly opened on the side wall of the channel module box body 1f, the RF input terminal 19 extends out of the third channel signal via hole to connect to the receiving antenna, and the intermediate frequency output terminal 20 extends out of the third channel signal via hole to connect to an external A / D acquisition device.

[0105] like Figure 7 As shown: the frequency extension module is provided with a frequency module box body 1d, a second mounting groove is provided on the upper surface of the frequency module box body 1d, a frequency PCB board 2c is installed in the second mounting groove, and the frequency PCB board 2c is installed on the inner side of the frequency module cover plate 1e;

[0106] The frequency PCB board 2c is provided with the second power conditioning circuit, the second digital control circuit, the local oscillator coupling and load detection circuit, the spread spectrum frequency conversion circuit and the intermediate frequency interface circuit;

[0107] The lower surface of the frequency PCB board 2c is provided with an intermediate frequency signal feed-out terminal 6, a local oscillator signal feed-in terminal group 8, 10, and a power supply and control signal feed-in pin 13;

[0108] The frequency module box body 1d has a first frequency signal through hole at the bottom, and the intermediate frequency signal feed-out terminal 6, the local oscillator signal feed-in terminal group 8, 10, and the power and control signal feed-in pin 13 extend out of the corresponding first frequency signal through holes and are connected to the previous module;

[0109] The upper surface of the frequency PCB board 2c is provided with a local oscillator signal feed terminal group 7, 9, an intermediate frequency signal feed terminal 5, a power supply and control signal feed socket 12, and a radio frequency input terminal 11;

[0110] The frequency module cover plate 1e is provided with a corresponding second frequency signal through hole, and the local oscillator signal feed terminal group 7, 9, the intermediate frequency signal feed terminal 5, and the power supply and control signal feed socket 12 extend out of the corresponding second frequency signal through holes and are connected to the subsequent module;

[0111] The frequency module box body 1d is provided with a third frequency signal through hole, and the RF input terminal 11 extends out of the third frequency signal through hole and is connected to a spread spectrum receiving antenna.

[0112] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for automatically constructing a scalable multi-channel array receiver, characterized in that: The following steps are involved: Step 1: constructing an expandable multi-channel array receiver, wherein the expandable multi-channel array receiver comprises a receiver body, wherein the receiver body is provided with a basic module and N expansion modules, wherein the N expansion modules comprise at least one channel expansion module and at least one frequency expansion module; Step 2: The scalable multi-channel array receiver is powered on and initialized; Step 3: The basic module sends a configuration query command to the expansion module via a downlink command control bus; Step 4: The expansion module detects load information through local oscillator coupling and load detection circuit. When a load is detected, the expansion module waits for the subsequent expansion module to upload configuration information, and then aggregates the configuration information and uploads it to the previous expansion module or the basic module; when no load is detected, the configuration information is directly uploaded to the previous expansion module; Step 5: After the basic module receives the configuration information counted, aggregated, and uploaded by all the extension modules step by step, it calls the preset control and management program according to the configuration information; Step 6: The scalable multi-channel array receiver completes automatic construction and waits for external instructions.

2. The automatic construction method of an expandable multi-channel array receiver according to claim 1, characterized in that: In the step 1, the scalable multi-channel array receiver includes a hardware structure and a corresponding program circuit software structure; The program circuit software structure includes a first power conditioning circuit provided in the basic module and a second power conditioning circuit provided in the expansion module, wherein the first power conditioning circuit is connected to each second power conditioning circuit via a power bus; The basic module is also provided with a first digital control circuit, and the expansion module is also provided with a second digital control circuit, the first digital control circuit is connected to each second digital control circuit via a downline instruction data bus, and the rear-stage digital control circuit is also connected to the front-stage digital control circuit via an uplink management data line; The basic module is also provided with at least one bandwidth local oscillator signal source, and the extension module is also provided with a local oscillator coupling and load detection circuit. The bandwidth local oscillator signal source is connected to the first local oscillator coupling and load detection circuit, and each local oscillator coupling and load detection circuit is connected in series in sequence.

3. The automatic construction method of an expandable multi-channel array receiver according to claim 2, characterized in that: In step 2, the first power conditioning circuit in the basic module supplies power to the second power conditioning circuit in each expansion module via a power bus; In step 3, the first digital control circuit in the basic module sends a configuration query instruction to the second digital control circuit in each expansion module via the offline instruction data bus.

4. The automatic construction method of an expandable multi-channel array receiver according to claim 2, characterized in that: In step 4, the local oscillator coupling and load detection circuit in the current expansion module detects load information. When a load is detected, the current second digital control circuit waits for the subsequent second digital control circuit to upload configuration information to the current second digital control circuit. After receiving the configuration information uploaded by the subsequent second digital control circuit, the current second digital control circuit aggregates the subsequent configuration information with the current configuration information, and then uploads it to the previous second digital control circuit or the first digital control circuit. When no load is detected, the current second digital control circuit directly uploads the current configuration information to the previous second digital control circuit.

5. The automatic construction method of an expandable multi-channel array receiver according to claim 2, characterized in that: In step 5, after the first digital control circuit in the basic module receives the configuration information counted, aggregated and uploaded by all the second digital control circuits step by step, it calls the preset control and management program according to the configuration information.

6. The automatic construction method of an expandable multi-channel array receiver according to claim 1, characterized in that: In step 4 and step 5, the configuration information includes but is not limited to the type of extension module, the operating frequency range, and the load connection status.

7. The automatic construction method of an expandable multi-channel array receiver according to claim 2, characterized in that: The hardware structure is the receiver body, which is a layered structure. A basic module and N expansion modules are arranged in sequence from bottom to top. The basic module and the expansion module are rectangular structures, and mounting seats are arranged at the four top corners. The mounting seats are provided with mounting holes. The basic module and all expansion modules are stacked together in sequence, and the mounting holes at the four corners are respectively penetrated and fixed by the same mounting column to form the layered structure.

8. The automatic construction method of an expandable multi-channel array receiver according to claim 7, characterized in that: The basic module is provided with a basic module box body (1b); an upper installation cavity is provided at the upper part of the basic module box body (1b); a first PCB board (2a) is installed in the upper installation cavity; the first PCB board (2a) is installed on the inner side of the upper cover plate (1a); a lower installation cavity is provided at the lower part of the basic module box body (1b); a second PCB board (2b) is installed in the lower installation cavity; the second PCB board (2b) is buckled via the lower cover plate (1c); The second PCB board (2b) is provided with the first power conditioning circuit and the first digital control circuit; A power supply and control signal feed-in socket (4) is installed on the second PCB board (2b); a socket slot is provided on the lower cover plate (1c) corresponding to the power supply and control signal feed-in socket (4), the power supply and control signal feed-in socket (4) is located in the socket slot, a socket is provided on the side wall of the basic module box body (1b), the power supply and control signal feed-in socket (4) is opposite to the socket, and the two are tightly fitted; The basic module is connected to an external control and power supply module via the power supply and control signal feed socket (4); At least one broadband local oscillator signal source is arranged on the first PCB board (2a), a local oscillator signal feed terminal group (1, 3), a power supply and a control signal feed socket (2) are arranged on the first PCB board (2a), a corresponding number of signal feed holes are opened on the upper cover plate (1a), and the local oscillator signal feed terminal group (1, 3), the power supply and the control signal feed socket (2) are respectively extended out of the corresponding signal feed holes and then connected to the subsequent expansion module.

9. The automatic construction method of an expandable multi-channel array receiver according to claim 7, characterized in that: The channel expansion module is provided with a channel module box body (1f), the upper surface of the channel module box body (1f) is provided with a first installation groove, a channel PCB board (2d) is installed in the first installation groove, and the channel PCB board (2d) is installed on the inner side of the channel module cover plate (1g); The channel PCB board (2d) is provided with the second power supply conditioning circuit, the second digital control circuit, the local oscillator coupling and load detection circuit, the basic frequency conversion circuit and the intermediate frequency interface circuit; The lower surface of the channel PCB board (2d) is provided with a local oscillator signal feed terminal group (16, 18) and a power and control signal feed pin (22), and the bottom of the channel module box body (1f) is provided with a plurality of first channel signal via holes, and the local oscillator signal feed terminal group (16, 18) and the power and control signal feed pin (22) are respectively extended out of the corresponding first channel signal via holes and connected to the previous module; The upper surface of the channel PCB board (2d) is provided with an intermediate frequency signal feed-in terminal (14), a local oscillator signal feed-out terminal group (15, 17), a radio frequency input terminal (19), an intermediate frequency output terminal (20), and a power supply and control signal feed-out socket (21); The channel module cover plate (1g) is provided with a corresponding second channel signal through hole, and the intermediate frequency signal feed-in terminal (14), the local oscillator signal feed-out terminal group (15, 17), and the power supply and control signal feed-out socket (21) extend out of the corresponding second channel signal through hole and are connected to the subsequent module; A third channel signal via hole is correspondingly provided on the side wall of the channel module box body (1f); the radio frequency input terminal (19) extends out of the third channel signal via hole to be connected to a receiving antenna; and the intermediate frequency output terminal (20) extends out of the third channel signal via hole to be connected to an external A / D acquisition device.

10. The automatic construction method of an expandable multi-channel array receiver according to claim 7, characterized in that: The frequency extension module is provided with a frequency module box body (1d), the upper surface of the frequency module box body (1d) is provided with a second installation groove, a frequency PCB board (2c) is installed in the second installation groove, and the frequency PCB board (2c) is installed on the inner side of the frequency module cover plate (1e); The frequency PCB board (2c) is provided with the second power supply conditioning circuit, the second digital control circuit, the local oscillator coupling and load detection circuit, the spread spectrum frequency conversion circuit and the intermediate frequency interface circuit; The lower surface of the frequency PCB board (2c) is provided with an intermediate frequency signal feed-out terminal (6), a local oscillation signal feed-in terminal group (8, 10), and a power supply and control signal feed-in pin (13); The frequency module box body (1d) has a first frequency signal through hole at the bottom, and the intermediate frequency signal feed-out terminal (6), the local oscillator signal feed-in terminal group (8, 10), and the power supply and control signal feed-in pin (13) extend out of the corresponding first frequency signal through holes and are connected to the previous module; The upper surface of the frequency PCB board (2c) is provided with a local oscillation signal feed terminal group (7, 9), an intermediate frequency signal feed terminal (5), a power supply and control signal feed socket (12), and a radio frequency input terminal (11); The frequency module cover plate (1e) is provided with a corresponding second frequency signal through hole, and the local oscillator signal feed terminal group (7, 9), the intermediate frequency signal feed terminal (5), and the power supply and control signal feed socket (12) extend out of the corresponding second frequency signal through holes and are connected to the subsequent module; The frequency module box body (1d) is provided with a third frequency signal through hole, and the radio frequency input terminal (11) extends out of the third frequency signal through hole and is connected to a spread spectrum receiving antenna.

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