Emergency work design method for active array equipment in cooling fault state

Abstract

The invention provides an emergency work design method for active array equipment in a cooling fault state, and the method comprises the steps: delaying the cutting of a power supply of an active part of an antenna array, or forcibly turning on the power supply to supply power to the active part of the antenna array when the equipment cannot work under the conventional processing flow of the cooling fault state of the active antenna array; the working states (temperature, current and the like) of all functional units and all receiving and transmitting channels in the active antenna array are monitored in real time, the effective working time of equipment is prolonged as much as possible while the equipment is prevented from being damaged according to internally set threshold values, and the emergency working requirements of the equipment in wars or disasters are met.

Description

Technical Field

[0001] The invention relates to the technical field of phased array equipment, and in particular to an emergency operation design method for active array equipment under a cooling failure state. Background Art

[0002] With the development of phased array technology, communication and radar equipment using active antenna arrays are increasingly used in key areas related to national economy and people's livelihood, and the requirements for their reliability are becoming higher and higher. In addition, with the development of microelectronics technology, the effective power of microwave circuits is getting larger and smaller, and the monolithic integration of transceiver circuits has been realized. Corresponding to the increasing power density of active antenna arrays, thermal design has become an indispensable step in the design of related equipment. In order to ensure its stable and reliable operation, forced cooling measures such as air cooling or liquid cooling (such as patents CN112216944B, CN107732411A, CN109786924A) are often designed. When the cooling fails and the required cooling fluid flow cannot be continued to be provided to the active array antenna, in order to protect the active antenna array from being burned, the traditional treatment method is to immediately cut off its working power supply (patent CN115046587A), repair the faulty part, and then power it on to resume work when the cooling fluid flow is restored. Although this method can reduce the risk of damage to the active antenna array, in the event of an emergency such as a disaster or war, when the benefits or value brought to society or the system as a whole by the continued operation of the above-mentioned equipment is far greater than the economic value of the equipment itself, the method of immediately cutting off the active array working power supply when a cooling failure occurs cannot meet the emergency work needs of the equipment under abnormal emergency conditions. Summary of the invention

[0003] In view of the limitations of traditional designs, the present invention proposes an emergency (mode) working design method for active array equipment under cooling failure conditions. In an emergency, when the cooling system fails, the power supply of the antenna array is cut off with a delay, or the power supply is forcibly turned on to supply power to the antenna array, and the working status (temperature, current) of each functional unit and each channel inside the active antenna array is monitored in real time. Based on historical experience data (self-protection current or temperature threshold), the effective working time of the equipment is extended as much as possible to avoid equipment damage and meet the emergency work needs of the equipment.

[0004] In order to achieve the above technical objectives, the present invention proposes an emergency work design method for active array equipment under cooling failure state, wherein the active array equipment comprises: one or more independent antenna arrays, a dispatching and information processing cabinet, a power supply cabinet, an environmental control cabinet, and a display and control cabinet, which are interconnected through a communication and control bus, and the equipment has a BIT (Built-in Test) function and the BIT is spread over each active replaceable unit; the antenna array comprises a number of antenna units, an active part (including a number of transmitting channels and a number of receiving channels, a wave control and preprocessing unit, a power supply unit), and an environmental control monitoring unit, and the environmental control monitoring unit is completely The temperature and humidity, cooling medium flow, pressure, and temperature information in the antenna array are collected. The power supply unit completes the conversion from DC high voltage to DC low voltage to power the active part in the antenna array. The power cabinet provides power for the entire equipment, and independently supplies power to the antenna array environmental control monitoring unit, the active part of the antenna array, the dispatching and information processing cabinet, the environmental control cabinet, and the display and control cabinet. The voltage and current monitoring data and fault status information are summarized to the display and control cabinet through the network. The environmental control cabinet has the function of cooling medium temperature control, and provides cooling medium with a certain flow and pressure to the antenna array through pipelines, and cools or heats the cooling medium that exceeds the temperature limit range to the set range. , with cooling medium volume, temperature monitoring, flow, pressure control and monitoring functions, and transmit relevant information to the display and control cabinet through the network; the display and control cabinet runs the display and control software to realize the display and control function of the equipment, and the display and control software integrates the equipment BIT unit. The equipment BIT unit has the functions of collecting, recording and displaying real-time monitoring data and fault information of each component of the equipment; the emergency work design method refers to the design of the power on and off of the equipment and the power supply, power off and operation steps during the working process according to the emergency work needs, and the setting of the special switch for emergency power on / off of the active part of the antenna array, so as to realize: 1) During the normal operation of the equipment, the equipment BIT unit is in the acquisition 1) When an antenna array cooling fault is detected, the state of the emergency power-on / power-off switch is immediately detected. If it is in the "on" state, the power supply to the active part of the antenna array continues, and the power supply is cut off slowly; if it is in the "off" state, the power supply to the active part of the antenna array is immediately cut off; 2) During the equipment startup process, when the equipment BIT unit collects the antenna array cooling fault information, it can manually set the state of the emergency power-on / power-off switch according to the emergency state requirements. If it is in the "on" state, the equipment BIT unit forces the power-on / power-off switch of the active part of the antenna array to power the active part of the antenna array; otherwise, the active part of the antenna array is not powered.

[0005] Preferably, the design method also includes: starting up and powering on the equipment is implemented in two steps: the first step: when the main power switch of the equipment is turned on, the power cabinet supplies power to other parts of the entire equipment except the active part of the antenna array; the second step: after the first step is completed and the corresponding part works stably, its status is summarized and displayed on the display and control interface of the BIT unit, and the software in the BIT unit determines whether the power-on conditions of the active part of the antenna array are met. If the conditions are met, the power-on permission information of the active part of the antenna array will be prompted, otherwise no prompt will be given; then, under the power-on permission condition, the power-on / off switch of the active part of the antenna array can be manually turned on to realize the power supply of the active part of the antenna array.

[0006] The design method also includes: when designing the equipment, according to the number N of independent antenna arrays in the equipment, a consistent number of N antenna array active part power on / off switches and N antenna array active part emergency power on / off switches are set according to the number N of independent antenna arrays in the equipment. The 2N switches are integrated together in the display and control cabinet operating table and installed within the reach of the operator to facilitate operation by the equipment operator.

[0007] Preferably, the antenna array active part power on / off switch and emergency power on / off switch of the display and control cabinet are both physical switches, and are directly connected to the corresponding array power control terminal of the power cabinet through an independent bus. The implementation methods of the bus include but are not limited to RS485, RS422, CAN, and Ethernet network.

[0008] Preferably, the device has a BIT function and the BIT is spread over each active replaceable unit, wherein the active part inside the antenna array: each receiving and transmitting channel has voltage, current and temperature monitoring functions, the wave control and preprocessing unit and the environmental control monitoring unit have voltage and temperature monitoring functions, and the power supply unit has input and output voltage, input and output current and temperature monitoring functions; each of the above replaceable units provides a status judgment function for the monitored information, and sets the normal threshold range, warning threshold range and fault threshold range of its monitoring information according to its limit working parameters in its programmable part, and provides three status judgment functions of normal, warning and fault according to the comparison of the monitoring information collected in real time with the set threshold. In the BIT unit of the device, if the monitoring information is within the normal threshold range, the corresponding unit BIT information is displayed in green, if the monitoring information is within the warning threshold range, the corresponding unit BIT information is displayed in yellow, and if the monitoring information is within the fault threshold range, the corresponding unit BIT information is displayed in red; in the emergency working state, each active replaceable unit in the antenna array performs status monitoring and judgment at a higher frequency.

[0009] Preferably, the cooling fault is an antenna array cooling fault. The environmental control monitoring unit or the environmental control cabinet detects that the cooling medium pressure is less than the set pressure standard threshold, and reports a corresponding antenna array cooling medium pressure fault. The environmental control monitoring unit or the environmental control cabinet detects that the cooling medium flow is less than the set flow standard threshold, and reports a corresponding antenna array cooling medium flow fault. The equipment BIT unit detects that the temperature monitoring data of one or more active replaceable units of the antenna array exceeds the temperature fault threshold, and reports a corresponding antenna array over-temperature fault. The antenna array cooling fault includes antenna array cooling medium pressure fault, antenna array cooling medium flow fault, and antenna array over-temperature fault. When the equipment BIT unit collects any of the above faults, the equipment BIT unit reports a corresponding antenna array cooling fault.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] 1. It can meet the power-on requirements or continuous operation requirements of active array equipment in emergency situations or when cooling fails.

[0012] 2. By setting one-to-one corresponding and independent antenna array emergency power switches according to the number of antenna arrays, the power control between multiple antenna arrays is independent, which reduces the mutual restraint and constraints between antenna arrays in the event of cooling failure, and improves the maintainability and reliability of the entire equipment.

[0013] 3. The power on / off switch of the active part of the antenna array and the emergency power on / off switch are integrated together on the display and control cabinet operating table within the reach of the operator. Both adopt the physical switch design, which is convenient for the equipment operator to control and improves the human-computer interaction of the equipment.

[0014] The power on / off switch and emergency power on / off switch of the active part of the 4-antenna array are directly connected point-to-point to the corresponding array power control end points of the power cabinet through an independent bus, which improves the time agility of the entire control process and the reliability of control information transmission.

[0015] The control buses of the power on / off switch and the emergency power on / off switch of the active part of the 5-antenna array are all in independent differential form, which reduces the probability of external interference and mutual interference and improves the reliability of control information transmission.

[0016] 6 The present invention can be extended to other high-value radio equipment with emergency use requirements and mandatory cooling measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Emergency workflow diagram when cooling failure occurs during equipment startup.

[0018] Figure 2 Emergency work flow chart when cooling failure occurs during normal operation of the equipment. DETAILED DESCRIPTION

[0019] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Example: In this example, Figure 1As shown: the active array device in the embodiment includes: four completely identical independent antenna arrays, a power cabinet, an environmental control cabinet, and a display and control cabinet. The cabinets are interconnected through a bus, and the communication and control bus are realized through optical fiber, network, and 422 bus. Each active replaceable unit in the device has a BIT function. Each antenna array contains 64 antenna units, an active part (including 64 transmitting channels and 64 receiving channels, 1 beam control and preprocessing unit, 1 power supply unit), and an environmental control monitoring unit. The active part completes the conversion from baseband to RF and RF to baseband, transceiver conversion, transceiver beam synthesis and beam pointing adjustment, as well as the frequency generation, conversion and waveform control functions of the work. The environmental control monitoring unit completes the collection of temperature and humidity, cooling medium flow, pressure and temperature information in the antenna array. The power supply unit completes the conversion from DC 96V high voltage to DC 48V low voltage to power the active part in the antenna array; the dispatching and information processing cabinet completes the working frequency selection, beam scheduling and beam control parameter solution of each antenna array, as well as the information processing of the antenna array receiving signal; the power supply cabinet provides power for the entire equipment, providing 24V DC to the antenna array environmental control monitoring unit, DC 96V to the active part of the antenna array, and DC power for the dispatching and information processing cabinet and the environmental control cabinet. 1. The display and control cabinet provides an independent 220V AC power supply, and has input and output current and voltage monitoring, and input over-voltage and under-voltage, output over-current, output over-voltage and under-voltage automatic protection functions and corresponding fault indications; Environmental control cabinet: It has the cooling medium temperature control function, and provides cooling medium with a certain flow and pressure to the antenna array through pipelines, and cools or heats the cooling medium that exceeds the temperature limit to the set range, and has cooling medium volume and temperature monitoring, flow, pressure control and monitoring functions; Display and control cabinet: Run the display and control software to realize the display and control function of the equipment. The equipment BIT unit is integrated in the display and control software. The equipment BIT unit has the function of collecting, recording and displaying the real-time monitoring data and fault information of each component of the equipment; Active part of the antenna array: Each receiving and transmitting channel has voltage, current and temperature monitoring functions, the wave control and preprocessing unit, and the environmental control monitoring unit have voltage and temperature monitoring functions, and the power supply unit has input and output voltage, input and output current and temperature monitoring functions.The above-mentioned replaceable units all provide BIT status function of the monitored information. The programmable part of the replaceable unit sets its normal threshold range, warning threshold range and fault threshold range according to its extreme working parameters, and provides normal, warning and fault status judgment functions based on the comparison of the real-time collected monitoring information with the set threshold. All cabinets including antenna arrays transmit relevant monitoring, status and fault information to the display and control cabinet equipment BIT unit through the network; in the equipment BIT unit, if the monitoring information is within the normal threshold range, the corresponding unit BIT information is displayed in green, if the monitoring information is within the warning threshold range, the corresponding unit BIT information is displayed in yellow, and if the monitoring information is within the fault threshold range, the corresponding unit BIT information is displayed in red; in the emergency working state, each active replaceable unit in the antenna array performs status monitoring and judgment at a collection and processing frequency four times that of the normal working state.

[0021] When the equipment BIT unit detects an antenna array cooling medium pressure fault (less than the set pressure standard threshold) or an antenna array cooling medium flow fault (less than the set flow standard threshold) reported by the environmental control cabinet, or an antenna array over-temperature fault (the temperature monitoring data of 1 or more active replaceable units exceeds the temperature fault threshold) reported by the antenna array, if any of the above faults occurs, the equipment BIT unit reports the corresponding antenna array cooling fault.

[0022] In this embodiment, the active array device is designed with a main power switch to provide power to the entire device. There are 4 antenna arrays in the device, so 4 corresponding antenna array active part power on / off switches and 4 antenna array active part emergency power on / off switches are designed. The 8 physical switches are installed on the display and control cabinet operating table within the reach of the operator, and are directly connected to the corresponding array power control terminal of the power cabinet through an independent 422 bus.

[0023] The specific implementation strategy is integrated into the BIT unit software of the display and control console equipment, which is divided into the emergency response process during the equipment startup process and the emergency response process during the normal operation of the equipment:

[0024] The equipment startup and power-on are implemented in two steps: the first step: when the main power switch of the equipment is turned on, the power cabinet supplies power to all parts of the entire equipment except the active part of the antenna array; the second step: after the first step is completed and the corresponding part is working stably, its monitoring status is summarized and displayed on the display and control interface of the equipment BIT unit. During the startup BIT, when the equipment BIT unit collects and prompts a cooling fault of a certain antenna array, it can manually set the switch state of the emergency power-on / off switch of the active part of the corresponding antenna array according to the emergency state requirements. If it is in the "on" state and other power-on conditions of the active part of the antenna array are met, the power-on / off switch of the active part of the antenna array is forced to open to power the active part of the antenna array. The equipment BIT unit software monitors the working status (temperature, current) of each functional unit and each channel inside the active array antenna in real time. Under the condition that its self-protection current or temperature threshold is not reached, it avoids damage to the equipment while extending the effective working time of the equipment as much as possible. Once 10% or more of the temperature monitoring parameters or When the current monitoring parameter reaches or exceeds its self-protection threshold, the BIT unit software of the device immediately sends a power-off control command to the power supply cabinet corresponding to the active part of the array to cut off the power supply of the active antenna array; if the switch state of the emergency power-on / power-off switch of the active part of the antenna array is "off" or other power-on conditions of the active part of the antenna array are not met, the active part of the antenna array will not be powered; if the BIT unit of the device does not collect the antenna array cooling fault, and other power-on conditions of the corresponding active part of the antenna array are met, the corresponding active part of the antenna array will be prompted to power on the active part, and the power-on / power-off switches of the active parts of the antenna array will be opened normally to power the active parts of the antenna array; if the BIT unit of the device does not collect the antenna array cooling fault, and other power-on conditions of the corresponding active part of the antenna array are not met, the corresponding active part of the antenna array will not be prompted to power on the active part, and even if the power switches of the active parts of the antenna array are forced to open, it will not work and the power supply action cannot be realized.

[0025] During normal operation of the equipment, during the BIT cycle, if the BIT software unit of the equipment detects a cooling failure in a certain array, it will immediately detect the switch state of the emergency power-on switch of the active part of the corresponding antenna array. If it is in the "open" state, the power supply will be delayed to cut off and the power supply to the active part of the antenna array will continue. The BIT unit software of the equipment monitors the working state (temperature, current) of each functional unit and each channel inside the active array antenna in real time. Under the condition that its self-protection current or temperature threshold is not reached, it avoids damage to the equipment while extending the effective working time of the equipment as much as possible. Once 10% or more of the temperature monitoring parameters or current monitoring parameters reach or exceed their self-protection threshold, the BIT unit software of the equipment immediately sends a power-off control command to the power supply of the active part of the corresponding array of the power cabinet, cuts off the power supply of the active antenna array, and meets the emergency use needs of the equipment; if it is in the "closed" state, the power supply of the active part of the antenna array is immediately cut off.

[0026] The above embodiments are only for illustrating the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims

1. A method for designing emergency operation of active array equipment under cooling failure state, characterized in that: The active array device includes: one or more independent antenna arrays, dispatching and information processing cabinets, power cabinets, environmental control cabinets, and display and control cabinets, which are interconnected through communication and control buses. The device has a BIT function and the BIT is spread over each active replaceable unit; the antenna array includes a number of antenna units, an active part, and an environmental control monitoring unit. The environmental control monitoring unit completes the collection of temperature and humidity, cooling medium flow, pressure, and temperature information in the antenna array. The active part includes a number of transmitting channels and a number of receiving channels, a wave control and preprocessing unit, and a power supply unit. The power supply unit completes the conversion from DC high voltage to DC low voltage to power the active part in the antenna array; The power cabinet provides power for the entire equipment, and independently supplies power to the antenna array environmental control monitoring unit, the antenna array active part, the dispatching and information processing cabinet, the environmental control cabinet, and the display and control cabinet. The voltage and current monitoring data and fault status information are summarized to the display and control cabinet through the network; the environmental control cabinet has a cooling medium temperature control function, and provides cooling medium with a certain flow and pressure to the antenna array through pipelines, and cools or heats the cooling medium exceeding the temperature limit range to the set range. It has cooling medium volume and temperature monitoring, flow, pressure control and monitoring functions, and transmits relevant information to the display and control cabinet through the network; the display and control cabinet runs the display and control software to realize the display and control function of the equipment, and the equipment BIT unit is integrated in the display and control software. The equipment BIT unit has the functions of collecting, recording, and displaying real-time monitoring data and fault information of each component of the equipment; the emergency work design method includes: Step 1: When the device is working normally, the BIT unit of the device immediately detects the state of the emergency power-on / power-off switch when it detects the antenna array cooling fault. If it is in the "on" state, the power supply to the active part of the antenna array continues and the power supply is cut off later; if it is in the "off" state, the power supply to the active part of the antenna array is immediately cut off; Step 2: During the device startup process, when the device BIT unit collects antenna array cooling fault information, it can manually set the state of the emergency power-on / power-off switch according to the emergency state requirements. If it is in the "on" state, the device BIT unit will force the antenna array active part power-on / power-off switch to be turned on to supply power to the active part of the antenna array; otherwise, the active part of the antenna array will not be powered.

2. The method for designing emergency operation of active array equipment under cooling failure state according to claim 1, characterized in that: The design method also includes: the equipment is powered on in two steps: the first step: the main power switch of the equipment is turned on, and the power cabinet supplies power to the other parts of the entire equipment except the active part of the antenna array; the second step: after the first step is completed and the corresponding part works stably, its status is summarized and displayed on the display and control interface of the BIT unit, and the software in the BIT unit determines whether the power-on conditions of the active part of the antenna array are met, and prompts the power-on permission information of the active part of the antenna array if the conditions are met, otherwise no prompt; then, under the power-on permission condition, the power-on / off switch of the active part of the antenna array can be manually turned on to realize the power supply of the active part of the antenna array.

3. The method for designing emergency operation of active array equipment under cooling failure state according to claim 1, characterized in that: The design method also includes: when designing the equipment, according to the number N of independent antenna arrays in the equipment, a consistent number of N antenna array active part power on / off switches and N antenna array active part emergency power on / off switches are set according to the number N of independent antenna arrays in the equipment. The 2N switches are integrated together in the display and control cabinet operating table and installed within the reach of the operator to facilitate operation by the equipment operator.

4. A method for designing emergency operation of active array equipment under cooling failure state according to any one of claims 1 to 3, characterized in that: The antenna array active part power on / off switch and emergency power on / off switch of the display and control cabinet are both physical switches, and are directly connected to the corresponding array power control terminal of the power cabinet through an independent bus. The implementation methods of the bus include but are not limited to RS485, RS422, CAN, and Ethernet networks.

5. The method for designing emergency operation of active array equipment under cooling failure state according to claim 1, characterized in that: The device has a BIT function and the BIT is spread over each active replaceable unit, wherein the active part inside the antenna array: each receiving and transmitting channel has voltage, current and temperature monitoring functions, the wave control and preprocessing unit and the environmental control monitoring unit have voltage and temperature monitoring functions, and the power supply unit has input and output voltage, input and output current and temperature monitoring functions; each of the above replaceable units provides a status judgment function for the monitored information, and sets the normal threshold range, warning threshold range and fault threshold range of its monitoring information according to its extreme working parameters in its programmable part, and provides three status judgment functions of normal, warning and fault according to the comparison of the real-time collected monitoring information with the set threshold. In the BIT unit of the device, if the monitoring information is within the normal threshold range, the corresponding unit BIT information is displayed in green, if the monitoring information is within the warning threshold range, the corresponding unit BIT information is displayed in yellow, and if the monitoring information is within the fault threshold range, the corresponding unit BIT information is displayed in red; in the emergency working state, each active replaceable unit in the antenna array performs status monitoring and judgment at a higher frequency.

6. The method for designing emergency operation of active array equipment under cooling failure state according to claim 1, characterized in that: The cooling fault is an antenna array cooling fault. The environmental control monitoring unit or the environmental control cabinet detects that the cooling medium pressure is less than the set pressure standard threshold, and reports the corresponding antenna array cooling medium pressure fault. The environmental control monitoring unit or the environmental control cabinet detects that the cooling medium flow is less than the set flow standard threshold, and reports the corresponding antenna array cooling medium flow fault. The equipment BIT unit monitors that the temperature monitoring data of one or more active replaceable units in the antenna array exceeds the temperature fault threshold, and reports the corresponding antenna array over-temperature fault. The antenna array cooling fault includes antenna array cooling medium pressure fault, antenna array cooling medium flow fault, and antenna array over-temperature fault. When the equipment BIT unit collects any of the above faults, the equipment BIT unit reports the corresponding antenna array cooling fault.

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