CN110375771B - Three-floating inertial instrument floater running-in equipment - Google Patents

Three-floating inertial instrument floater running-in equipment Download PDF

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CN110375771B
CN110375771B CN201910636015.XA CN201910636015A CN110375771B CN 110375771 B CN110375771 B CN 110375771B CN 201910636015 A CN201910636015 A CN 201910636015A CN 110375771 B CN110375771 B CN 110375771B
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running
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upper computer
voltage
float
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CN110375771A (en
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申茂冬
王龙
章丽蕾
张沛晗
廖波勇
李亮
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Beijing Aerospace Control Instrument Institute
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Beijing Aerospace Control Instrument Institute
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    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
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Abstract

The invention relates to three-floating inertial instrument float running-in equipment, and belongs to the technical field of inertial instruments. The device comprises a three-floating inertial instrument floater (to-be-detected part), a multi-channel motor power supply, a multi-channel electric signal monitoring module, a multi-channel temperature acquisition module, a program control incubator and an upper computer; the three-float inertial instrument floats can be driven simultaneously to carry out running-in screening. The equipment adopts an automatic control means to replace manual operation, realizes the automatic starting and stopping of running-in at regular time and the automatic acquisition and recording of running-in process data, and relieves an operator from monotonous and boring data recording work; in addition, the float running-in equipment introduces the abnormal real-time monitoring and automatic processing function of running-in, improves the reliability of running-in equipment, can in time respond to and automatic hierarchical processing unusual when the abnormal condition of running-in takes place, avoids the damage that the abnormal behavior of running-in probably caused float or equipment.

Description

Three-floating inertial instrument floater running-in equipment
Technical Field
The invention relates to three-floating inertial instrument float running-in equipment, in particular to three-floating inertial instrument float running-in equipment which has the capabilities of automatically starting and stopping running-in at regular time, acquiring and recording running-in process data in real time, monitoring running-in abnormity in real time and automatically processing, is used for running-in screening of three-floating inertial instrument floats and belongs to the technical field of inertial instruments.
Background
The three-floating gyroscope and the three-floating gyroscope accelerometer (collectively called as three-floating inertial instrument) are designed by utilizing the dead-axle property and precession of a high-speed rotating rigid body (gyro motor) respectively. The gyro motors of the two types of three-floating inertia instruments are both dynamic pressure air-floating hysteresis motors and are sealed in the floaters of the inertia instruments. Due to the limitation of the instrument volume, the motor has the advantages of small volume, high processing precision, complex process, high preparation difficulty and easy occurrence of quality hidden troubles. Therefore, after the dynamic pressure motor is installed in the float and sealed, a running-in screening test (referred to as float running-in screening for short) with a plurality of postures and a plurality of cycles for hundreds of hours in total needs to be carried out in the state of the float, so that the condition that the float of the three-floating inertial instrument (referred to as float for short) with hidden danger flows into a subsequent assembly link of the three-floating inertial instrument and the assembly qualification rate and the assembly efficiency of the instrument are influenced is avoided.
The traditional float running-in equipment does not have automation capacity, and an operator needs to manually carry out operations such as power-on and power-off of a float, running-in voltage switching and the like; the traditional floater running-in equipment is of an open-loop structure, three-phase square wave signals with the output frequency of 1kHz and the phase difference of 120 degrees drive the floater to run in, but the running-in process is not monitored, data recording is not needed, and an operator needs to manually record process data such as running-in current, running-in voltage, floater surface temperature and the like of a motor periodically at regular time; the traditional float running-in equipment does not have a running-in abnormity real-time monitoring function, can not process abnormity in time, has the possibility of damaging the equipment or a float, needs an operator to pay attention to the running condition of the equipment frequently in the running-in process, and avoids the damage to the equipment or the float caused by the running-in abnormity.
The application of LabVIEW in an accelerometer dynamic pressure motor running-in monitoring system in No. 9 of volume 34 in 2015 introduces a motor running-in monitoring system which can collect electrical signals such as current, power, voltage and frequency of a 10-path dynamic pressure motor in the running-in process of the dynamic pressure motor. Compared with the traditional running-in equipment, the monitoring system relieves the operator from the tedious and fussy data recording process to a certain extent; however, the monitoring system realizes the automatic data acquisition function on the basis of the traditional motor running-in equipment, does not have the interaction capability with the running-in equipment, does not form closed-loop control on the running-in process, cannot automatically and timely process abnormal conditions occurring in the running-in process, and cannot avoid the damage to a floater or the equipment possibly caused by abnormal running-in; furthermore, the device still relies on the operator to manually perform operations such as power-up, power-down, and running-in voltage switching of the float.
In conclusion, the traditional running-in equipment has low automation degree, high dependence on operators and serious waste of manpower, does not have a running-in abnormity monitoring function, cannot automatically process abnormity in time, and has the risk of damaging equipment or a floater.
Disclosure of Invention
The technical problem solved by the invention is as follows: the running-in equipment is a multichannel three-floating inertial instrument float running-in equipment with a process parameter monitoring function, can drive multiple paths of floats to run in simultaneously, adopts an automatic control means to replace manual operation, realizes the automatic starting and stopping of running in timing, automatically collects and records running-in process data, monitors and processes running abnormity in real time in a grading manner, and releases an operator from the work of monitoring a monotonous running-in state and recording data.
Based on above-mentioned three superficial inertial instrument floats running-in equipment of multichannel of taking process parameter monitoring function, introduce abnormal real-time supervision of running-in and automatic processing function, improve the reliability of running-in equipment, can in time respond to and automatic stage treatment to the anomaly when the abnormal condition of running-in takes place, avoid the damage that the running-in anomaly probably caused float or equipment.
The technical solution of the invention is as follows:
the utility model provides a three float inertial instrument floats running-in equipment, this running-in equipment includes three float inertial instrument floats, multichannel motor power, multichannel signal of telecommunication monitoring module, multichannel temperature acquisition module, programme-controlled incubator, alarm module and host computer, wherein:
the three-float inertial instrument float is a component to be tested, the core of the three-float inertial instrument float is a hemispherical dynamic pressure hysteresis motor (sealed in the float), and the purpose of float running-in is to perform running-in screening on the dynamic pressure motor in a float state. The running-in of the motor needs a three-phase square wave signal with the frequency of 1kHz and the phase difference of 120 degrees for driving, and the voltage of the driving signal is divided into 'synchronous voltage' and 'running-in voltage'. Wherein, the 'synchronous voltage' is the starting voltage (high voltage) of the motor and is used for the motor synchronization; after the motor is synchronized, the voltage of the driving signal is switched and stabilized at the running-in voltage (low voltage) for a long time, and the driving motor is run in; the transition process of switching the synchronous voltage to the running-in voltage requires smooth transition and no sudden change.
The multi-channel motor power supply (hereinafter referred to as a motor power supply) comprises a motor power supply lower computer and a plurality of output channels, wherein each output channel outputs a three-phase square wave signal, and the three-phase square wave signal output by each output channel drives a floater to run in; the output channels are mutually independent, and each output channel comprises a three-phase power amplifying unit and a digital-to-analog conversion unit. Under the control of a lower computer of a motor power supply, the three-phase power amplification unit generates three-phase square wave signals with the frequency of 1kHz and the phase difference of 120 degrees and performs power amplification, and the digital-to-analog conversion unit is used for adjusting the voltage of the three-phase square wave signals. The motor power supply is in a standby state after being electrified (each output channel outputs no enable, namely does not output signals), the motor power supply is controlled by an upper computer through a communication bus, and the controlled items comprise output enable and off enable operations, setting of 'synchronous voltage' and 'running-in voltage', setting of the duration of the synchronous voltage (namely 'synchronous time'), and setting of 'voltage reduction slope' for switching the 'synchronous voltage' into the 'running-in voltage'. When the upper computer enables a certain channel of the motor power supply, the enabled channel outputs a three-phase driving signal, the initial voltage of the three-phase driving signal is synchronous voltage, after a period of time (a set value of synchronous time), the output voltage is reduced from the synchronous voltage to running-in voltage at a constant speed by a set value of voltage reduction slope, and is stabilized at the running-in voltage for a long time until the upper computer performs off enabling operation on the channel.
The number of monitoring channels and the channel number of a multi-channel electric signal monitoring module (hereinafter referred to as an electric signal monitoring module) are consistent with those of a motor power supply output channel, the monitoring channels are mutually independent, each channel comprises a set of electric signal measuring unit, and the electric signal measuring units collect three-phase voltage and three-phase current of a floater three-phase driving signal. The electric signal monitoring module adopts a 'response' mode to collect signals, namely, the upper computer sends collection instructions periodically and regularly through a communication bus, and the electric signal monitoring module collects collection values of related monitoring channels according to the instructions and collects results to be transmitted back to the upper computer as a response.
The multichannel temperature acquisition module includes multichannel temperature acquisition channel, and multichannel temperature acquisition module gathers float surface temperature at the running-in-process, and temperature acquisition channel number and channel serial number and motor power output channel one-to-one correspond. The multi-channel temperature acquisition module comprises a temperature conversion circuit and a plurality of temperature acquisition probes, wherein the temperature acquisition probes are miniaturized probes, the temperature acquisition probes are adhered to the surface of the floater, the temperature acquisition probes are used for acquiring the surface temperature of the floater, and the number of the temperature acquisition probes is consistent with the number of output channels of the motor power supply; the temperature conversion circuit receives a temperature acquisition instruction sent by the upper computer at regular time, performs data processing on the acquisition value of each temperature acquisition probe according to the temperature acquisition instruction, and returns the processing result to the upper computer.
The program control incubator is used for heating the floater and providing a temperature field environment for the floater when the floater works normally in the instrument. The program control incubator is in a standby state after being electrified, and an upper computer is required to send an enabling instruction through a communication bus to enable the incubator to work (the incubator heats and keeps the internal temperature at a target temperature); when the program control incubator works, if the upper computer sends an enable-break instruction, the incubator can be switched to a standby state, and the program control incubator immediately stops working. In addition, the upper computer can not only set the target temperature and the temperature rise rate of the program control incubator through the binding instruction, but also read parameters such as the in-box temperature, the target temperature and the temperature rise rate of the program control incubator through the query instruction.
The alarm module is used for abnormal running-in prompt and consists of a three-color alarm lamp and a buzzer. In the running-in process, the upper computer enables a three-color alarm lamp and a buzzer to alarm in a grading manner through a communication bus once the upper computer monitors that the running-in is abnormal, so that an operator is reminded of paying attention. After the operator processes the abnormity, the upper computer is required to send a reset command to reset the alarm module, and then if the abnormity occurs again, the alarm module can still be triggered to alarm.
The upper computer is used as a control core of the running-in equipment, runs software of the floater running-in upper computer, and controls and coordinates the work of all functional modules (a motor power supply, an electric signal monitoring module, a temperature acquisition module, a program control incubator and an alarm module); the system has the functions of data acquisition and processing, periodically reads the monitoring quantities of the electric signal monitoring module and the temperature acquisition module at regular time, processes, displays and stores data and generates a report; the system has the functions of monitoring and automatically processing running-in abnormity in real time, and avoids possible damage to the floater or equipment caused by the running-in abnormity; the running-in system has a human-computer interaction function, provides an interface for adjusting control parameters of each functional module and judging thresholds of running-in abnormity, and realizes human intervention in the running-in process.
The multichannel three-floating inertial instrument floater running-in device is powered on by the master control switch control device, and after the master control switch is closed, all modules of the device are powered on together. After being electrified, the multi-channel electric signal monitoring module, the multi-channel temperature acquisition module and the alarm module directly enter a normal working state to wait for an upper computer instruction to execute corresponding operation; the program control incubator is in a standby state after being electrified, and starts to work after being enabled by the upper computer (before being enabled, the upper computer is required to bind the target temperature and the temperature rise rate of the incubator); the multichannel motor power supply is also in a standby state after being electrified, and the upper computer controls the multichannel motor power supply to work; the upper computer adopts a Windows operating system, is automatically started when being electrified, and needs an operator to open and start 'the floater runs the upper computer software'.
The software of the floater running upper computer has a communication bus self-checking function, and after the software of the upper computer is started, the communication function of the upper computer and each functional module is checked by sending a handshake instruction. If the upper computer fails to handshake with a certain functional module, a prompt box is popped out from the operation interface to prompt that the communication is abnormal; if the self-check is correct, the subsequent running-in control operation can be executed.
The software of the upper machine for float running has the control and monitoring functions of a plurality of running-in channels, the running-in channels are used as output channels of a motor power supply, monitoring channels of an electric signal monitoring module and mapping of temperature acquisition channels of a temperature acquisition module in the upper machine, the number of the running-in channels is consistent with the number of the channels of the modules, and the channel numbers are in one-to-one correspondence with the channel numbers of the modules. The setting of an operator on a certain running-in channel in the upper computer can be equivalent to the setting of a corresponding output channel of a motor power supply; meanwhile, the acquisition amount of each monitoring channel of the electric signal monitoring module and the temperature acquisition module can be displayed on the corresponding running-in channel. After an operator gates a certain running-in channel, the running-in parameters (including a float number, an operator, a running-in posture, a synchronous voltage, a running-in voltage, a synchronous time, a voltage reduction slope, timing power-on, power-on temperature, running-in time and an abnormal threshold) of the running-in channel need to be set at first, and then upper computer software controls and monitors the running-in of the float according to the set values of the parameters.
The software of the upper computer for the float running has a control function on the program control incubator, after setting of all channels to be run in is completed, an operator needs to set the target temperature and the temperature rise rate of the program control incubator in the upper computer, and the upper computer software binds parameters of the program control incubator according to set values and enables the incubator to work. After the program control temperature box is enabled, the temperature is heated according to the temperature rise rate, and when the temperature in the box reaches the target temperature, the temperature is switched to a heat preservation state, so that the temperature in the box is maintained at the target temperature, and the float is used for heating. And after all the channels are run in, the upper computer software sends an enable-break command to the program-controlled incubator to stop the incubator from working.
The upper computer software for running-in of the floater enables the power supply of the motor to output by adopting a mode of combining timing and temperature setting to drive the floater to run-in. After an operator gates a certain running-in channel in the upper computer software and finishes setting running-in parameters of the channel, the upper computer software performs time delay timing on the channel and periodically reads the surface temperature of a floater of the running-in channel; when the delay time reaches the set value of 'timing power-on' in the channel running-in parameter setting item and the surface temperature of the floater meets the set value of 'power-on temperature', the upper computer software binds parameters such as 'synchronous voltage', 'running-in voltage', 'synchronous time' and 'voltage reduction slope' to the corresponding output channel of the motor power supply through the parameter binding instruction, and enables the channel to output. After the corresponding output channel of the motor power supply is enabled, the voltage value of the output signal is firstly set as a 'synchronous voltage' binding value and is maintained for a period of time (the duration is set according to the 'synchronous time' binding value and is used for motor synchronization), and then the output voltage is automatically reduced to 'running-in voltage' according to the 'voltage reduction slope' binding value to drive the float motor to run in. In the synchronization stage and the voltage reduction transition stage, the upper computer software times the synchronization time and the transition time.
The software of the upper computer for the float running can stop the running-in of the float by adopting a timing power-off mode. In the float running-in process, the upper computer software times the running-in time, when the timing time of a certain running-in channel meets the set value of the running-in time length in the running-in parameter setting item of the channel, the upper computer software enables the output channel corresponding to the motor power supply to be disconnected, and the running-in of the channel float is stopped. In the running-in process, the upper computer software also allows an operator to manually power off a certain running-in channel, and forcibly stops the running-in of the channel floater under the condition that the running-in duration set value is not reached.
The upper computer software for running-in of the floater has a motor inertia time testing function, when the output of a certain output channel of a motor power supply is enabled to be broken, the upper computer software continues to collect and record the back electromotive force of the floater motor by using the multi-channel electric signal monitoring module, and when the voltage value of the back electromotive force is reduced to 0V, the upper computer software stops collecting and recording the electric signal and calculates the inertia time of the floater motor according to the back electromotive force.
The software of the upper computer for running of the floater has the functions of real-time acquisition, recording and report generation of running-in data. In the running-in process, the upper computer software periodically sends a query instruction to the electric signal monitoring module and the temperature acquisition module, reads the measured value of each channel of the two modules, and displays the measured value of each channel on an operation interface of the upper computer; meanwhile, the upper computer software establishes a recording file by using the 'floater number', and records the running-in parameter set value of each channel and the running-in process data (voltage and current of a floater three-phase driving signal and the surface temperature of the floater). After the running-in of a certain channel is finished, the upper computer software summarizes and counts the process data of the running-in of the channel and generates a data report, and records the float number, the incubator number, the equipment number, the running-in channel, the position and the posture of the running-in of the float, the mean value and the extreme difference of the voltage and the current of the three-phase driving signal in every 2h and the inertia time of the float motor.
The upper computer software for running-in of the floater has a real-time monitoring function for abnormal running-in. The upper computer software takes the surface temperature of each floater and the voltage (divided into synchronous voltage and running-in voltage), the current (divided into synchronous current and running-in current), the line voltage symmetry, the synchronous time length, the voltage reduction transition time length and the floater surface temperature of three-phase driving signals of each channel motor as abnormal monitoring items; in the running-in process, when the upper computer software periodically reads the measured values of the electric signal monitoring module and the temperature acquisition module, the monitoring quantity is synchronously compared with the set value of the abnormal threshold value in the running-in parameter setting item of the channel, and when a certain monitoring quantity meets the preset value of the abnormal threshold value, the running-in abnormal event is considered. According to the influence possibly caused by the abnormity, the running-in abnormity is divided into two abnormity levels of 'alarm' and 'fault'; the alarm indicates that partial abnormal monitoring items are out of tolerance, but the running-in equipment and the floater have no functional problem, and the equipment or the floater is not damaged by continuous running-in; "failure" means that the abnormal monitoring item is out of tolerance and is serious, the equipment or the floater has functional problems, and the floater or the equipment can be damaged by running in.
The float running-in upper computer software has a function of grading abnormal running-in. In the running-in process, once the upper computer software detects an abnormal event, the upper computer software carries out grading processing according to the abnormal grade (alarm or fault). Aiming at the abnormity of the alarm level, the equipment or the floater is not damaged due to continuous running, the upper computer software enables a three-color alarm lamp to display color yellow to prompt abnormity (a buzzer is not enabled, and a corresponding channel of a motor power supply is not disconnected and enabled), and an operator determines whether to further observe the channel of the motor power supply in a power-off or continuous running-in mode (if no human intervention exists, the running-in mode is continuously conducted); to the unusual of "outage" rank, probably cause the damage to equipment or float because of continuing to run in, the host computer makes the tricolor alarm lamp show red, buzzer buzzing warning, corresponds output channel to the motor power simultaneously and carries out the outage and enable, avoids the damage that causes float or equipment.
After the upper computer software for running-in of the floater finishes the abnormal processing, an operator needs to perform alarm clearing operation, and an alarm module is initialized, so that the upper computer software for running-in of the floater can be continuously triggered when the abnormal event for running-in occurs again. Under the condition that the 'out-of-tolerance' alarm is not cleared, if the 'fault' is abnormal, the running-in equipment automatically switches the 'out-of-tolerance' alarm into the 'fault' alarm and executes preset processing of the 'fault' abnormity.
Compared with the prior art, the invention has the advantages that:
(1) the float running-in equipment provided by the invention adopts an automatic control means to replace manual operation, realizes the timing automatic start and stop of running-in, the automatic acquisition and recording of running-in process data and the real-time monitoring and grading processing of running-in abnormity, and relieves operators from the monotonous and boring running-in state monitoring and data recording work.
(2) The float running-in equipment introduces the functions of real-time monitoring and automatic grading processing of running-in abnormity, and uses the voltage, current, line voltage symmetry, synchronous time length, voltage reduction transition time length and float surface temperature of three-phase driving signals of a float motor as abnormity monitoring items to carry out real-time monitoring and interpretation on the running-in abnormity; according to the influence possibly caused by the abnormity, the abnormity is divided into two abnormity levels of 'out-of-tolerance' and 'fault', and when the abnormity happens, grading processing is carried out according to the abnormity levels, so that the reliability of the running-in equipment is improved, and the damage possibly caused by the running-in abnormity to the floater or the equipment is avoided.
(3) The invention provides a multi-channel motor running-in power supply which is composed of a motor power supply lower computer and a plurality of output channels and can drive a plurality of inertia instrument floaters to run in simultaneously. The output channels of the multi-channel motor running-in power supply are mutually independent, and the running-in parameters of the output channels, such as synchronous voltage, running-in voltage, synchronous time, voltage reduction slope and the like, can be adjusted by an upper computer; after the upper computer enables a certain channel of the motor power supply, the motor power supply automatically adjusts the output signal of the channel according to the running-in parameter set value of the channel, and the float motor is synchronized and runs in.
(4) The invention provides a set of software for running a floater on an upper computer, which controls and coordinates the work of all functional modules (a motor power supply, an electric signal monitoring module, a temperature acquisition module, a program control incubator and an alarm module); the system has the functions of data acquisition and processing, periodically reads the monitoring quantities of the electric signal monitoring module and the temperature acquisition module at regular time, processes, displays and stores data and generates a report; the system has the functions of monitoring and automatically processing running-in abnormity in real time, and avoids possible damage to the floater or equipment caused by the running-in abnormity; the running-in system has a human-computer interaction function, provides an interface for adjusting control parameters of each functional module and judging thresholds of running-in abnormity, and realizes human intervention in the running-in process.
(5) A three-floating inertial instrument floater running-in device comprises a three-floating inertial instrument floater (to-be-detected piece), a multi-channel motor power supply, a multi-channel electric signal monitoring module, a multi-channel temperature acquisition module, a program control incubator and an upper computer; the three-float inertial instrument floats can be driven simultaneously to carry out running-in screening. The equipment adopts an automatic control means to replace manual operation, realizes the automatic starting and stopping of running-in at regular time and the automatic acquisition and recording of running-in process data, and relieves an operator from monotonous and boring data recording work; in addition, the float running-in equipment introduces the abnormal real-time monitoring and automatic processing function of running-in, improves the reliability of running-in equipment, can in time respond to and automatic hierarchical processing unusual when the abnormal condition of running-in takes place, avoids the damage that the abnormal behavior of running-in probably caused float or equipment.
Drawings
FIG. 1 is a block diagram of a three-float inertial meter float running-in device system;
FIG. 2 is a block diagram of a multi-channel motor power system;
FIG. 3 is a block diagram of a multi-channel electrical signal monitoring system;
FIG. 4 is a block diagram of a multi-channel temperature acquisition module;
FIG. 5 is a block diagram of a 1 st monitoring channel of the multi-channel temperature acquisition module;
FIG. 6 is a block diagram of an alarm module.
Detailed Description
The utility model provides a take three inertia instrument floats running-in equipment that float of process parameter monitoring function floats of multichannel, comprises three inertia instrument floats, multichannel motor power, multichannel signal of telecommunication monitoring module, multichannel temperature acquisition module, programme-controlled incubator, alarm module and host computer, wherein:
the three-floating inertial instrument floater is a component to be tested, the core of the three-floating inertial instrument floater is a hemispherical dynamic pressure hysteresis motor, and three-phase square wave signals with the frequency of 1kHz and the phase difference of 120 degrees are required to be driven; the starting voltage of the driving signal is divided into 'synchronous voltage' for motor synchronization; after the motors are synchronized, the voltage is switched and stabilized at the running-in voltage for a long time, and the running-in of the motors is driven; the transition process of switching the synchronous voltage to the running-in voltage requires smooth transition and no sudden change.
The multi-channel motor power supply is provided with a plurality of output channels and can simultaneously drive a plurality of floaters to run in;
the multi-channel electric signal monitoring module is provided with a plurality of monitoring channels, the number and the channel number of the monitoring channels are consistent with those of a multi-channel motor power supply output channel, and the three-phase voltage and the three-phase current of the floater driving signal are collected in the running-closing process;
the multi-channel temperature acquisition module is provided with a plurality of temperature acquisition channels, the number of the temperature acquisition channels and the channel numbers correspond to the power output channels of the multi-channel motor one by one, and the surface temperature of the floater is acquired in the running-in process;
the program control incubator is used for heating the floater and providing a temperature field environment for the floater when the floater normally works in the instrument;
the alarm module is used for prompting abnormal running-in, and once the upper computer monitors abnormal running-in, the upper computer enables the alarm module to alarm in a grading way through the communication bus to remind an operator of paying attention;
the upper computer is used as a control core of the running-in equipment, runs software of the floater running-in upper computer, and controls and coordinates the work of each functional module; in the running-in process, real-time acquisition, display and record are carried out on running-in process data, real-time monitoring and grading processing are carried out on running-in abnormity, and the reliability of equipment is guaranteed.
The upper computer is connected with a multi-channel motor power supply, a multi-channel electric signal monitoring module, a multi-channel temperature acquisition module, a program control incubator and an alarm module in parallel through a communication bus to control the modules to work.
The multi-channel motor power supply is provided with a plurality of output channels and can simultaneously drive a plurality of inertia instrument floaters to run in. The output channels are mutually independent, parameters such as 'synchronous voltage', 'running-in voltage', 'synchronous time' and 'voltage reduction slope' of output signals of the channels can be adjusted through an upper computer, a motor power supply automatically adjusts the output signals of the channels according to the set values of the running-in parameters, and the float motor is synchronized and runs in; when the upper computer sends an enable-off command to a certain channel which is outputting by the multi-channel motor power supply, the channel of the motor power supply stops outputting signals, and the running-in of the channel floater is stopped.
The upper computer is connected with the electric signal monitoring module and the temperature acquisition module in parallel through the communication bus, and the voltage and the current of the three-phase driving signal of each running-in channel floater and the surface temperature of the floater are measured through the multi-channel electric signal monitoring module and the multi-channel temperature acquisition module.
The control and monitoring function that possess a plurality of running-in passageways, the output channel as motor power, the monitoring passageway of signal of telecommunication monitoring module, the mapping of temperature acquisition module's temperature acquisition passageway in the host computer of running-in passageway, the number of running-in passageway keeps unanimous with the passageway figure of above-mentioned module, and the passageway serial number corresponds with the passageway serial number one-to-one of above-mentioned module. The setting of an operator on a certain running-in channel in the upper computer can be equivalent to the setting of a corresponding output channel of a motor power supply; meanwhile, the acquisition amount of each monitoring channel of the electric signal monitoring module and the temperature acquisition module can be displayed on the corresponding running-in channel.
After an operator gates a certain running-in channel, the running-in parameters (including a float number, an operator, a running-in posture, a synchronous voltage, a running-in voltage, a synchronous time, a voltage reduction slope, timing power-on, power-on temperature, running-in time and an abnormal threshold) of the running-in channel need to be set at first, and then upper computer software controls and monitors the running-in of the float according to the set values of the parameters.
The power supply output of the motor is enabled by adopting a mode of combining timing and temperature setting, and the float is started to run in. After an operator gates a certain running-in channel in the upper computer software and finishes setting running-in parameters of the channel, the upper computer software performs time delay timing on the channel and periodically inquires the surface temperature of a floater of the running-in channel; when the delay time reaches the set value of 'timing power-on' in the channel running-in parameter setting item and the surface temperature of the floater meets the set value of 'power-on temperature', the upper computer software binds parameters such as 'synchronous voltage', 'running-in voltage', 'synchronous time' and 'voltage reduction slope' to the corresponding output channel of the motor power supply through the parameter binding instruction, and enables the channel to output.
The float can be stopped from running in a timed power-off mode. In the float running-in process, the upper computer software times the running-in time, when the timing time of a certain running-in channel meets the set value of the running-in time length in the running-in parameter setting item of the channel, the upper computer software enables the output channel corresponding to the motor power supply to be disconnected, and the running-in of the channel float is stopped. In the running-in process, the upper computer software also allows an operator to manually power off a certain running-in channel, and forcibly stops the running-in of the channel floater under the condition that the running-in duration set value is not reached.
The program control incubator has the control function of the program control incubator, after setting of all to-be-run-in channels is completed, an operator sets the target temperature and the temperature rise rate of the program control incubator in the upper computer, and upper computer software binds parameters of the program control incubator according to set values and enables the incubator to work. After the program control temperature box is enabled, the temperature is firstly heated according to the temperature rise rate, and the temperature in the box is switched to a heat preservation state after reaching the target temperature, so that the temperature in the box is maintained at the target temperature. And after all the channels are run in, the upper computer software sends an enable-break command to the program-controlled incubator to stop the incubator from working.
The system has a motor inertia time testing function, when the output of a certain output channel of a motor power supply is enabled to be disconnected, the upper computer software continues to collect and record the back electromotive force of the float motor by using the multi-channel electric signal monitoring module, and calculates the inertia time of the float motor according to the back electromotive force.
The running-in data real-time acquisition, recording and report generation functions are achieved. In the running-in process, the upper computer software periodically sends a query instruction to the multi-channel electric signal monitoring module and the multi-channel temperature acquisition module, reads the measured value of each channel of the two modules and displays the measured value of each channel on an operation interface of the upper computer; in addition, the upper computer software establishes a recording file by using a floater number and records the running-in parameter set value and running-in process data (voltage and current of a floater three-phase driving signal and the surface temperature of the floater) of each channel. After the running-in of a certain channel is finished, the upper computer software summarizes and counts the process data of the running-in of the channel and generates a data report, and records the float number, the incubator number, the equipment number, the running-in channel, the position and the posture of the running-in of the float, the mean value and the extreme difference of the voltage and the current of the three-phase driving signal in every 2h and the inertia time of the float motor.
The system has a running-in abnormity real-time monitoring function, and the voltage, the current, the line voltage symmetry, the synchronization time length, the voltage reduction transition time length and the floater surface temperature of three-phase driving signals of the floater motor are taken as abnormity monitoring items to monitor and interpret the running-in abnormity in real time; according to the influence possibly caused by the abnormity, the abnormity is divided into two abnormity levels of 'out-of-tolerance' and 'fault', and when the abnormity happens, grading processing is carried out according to the abnormity levels, so that the reliability of the running-in equipment is improved, and the damage possibly caused by the running-in abnormity to the floater or the equipment is avoided.
The following further describes embodiments of the present invention with reference to the drawings.
Examples
Fig. 1 is a system block diagram of a three-floating inertial instrument float running-in device, which is composed of a three-floating inertial instrument float 1, a multi-channel electric signal monitoring module 2, a multi-channel motor power supply 3, a multi-channel temperature acquisition module 4, a program control incubator 5, an upper computer 7 and an alarm module 8. The upper computer 7 is connected with the three-floating inertial instrument floater 1 through the RS485 communication bus 6, the multi-channel motor power supply 3 and the multi-channel electric signal monitoring module 2 to drive the three-floating inertial instrument floater 1 to run in. The multi-channel electric signal monitoring module 2 is connected with an upper computer 7 through an RS485 communication bus 6 and used for collecting driving signals of the three-floating inertial instrument floater 1. The multichannel temperature acquisition module 5 is connected with an upper computer 7 through an RS485 bus 6 and is used for acquiring the surface temperature of the three-floating inertial instrument floater 1. The upper computer 7 is connected with the program control incubator 5 through an RS485 bus 6, controls the incubator to work, and simulates the temperature environment of the three-floating inertial instrument floater 1 when the instrument works normally.
The three-floating inertial instrument floater 1 is a component to be tested, the core of the three-floating inertial instrument floater is a hemispherical dynamic pressure hysteresis motor (sealed in the floater), and the purpose of the floater running-in is to perform running-in screening on the hemispherical dynamic pressure motor in the state of the floater. The motor needs three-phase square waves with the frequency of 1kHz and the phase difference of 120 degrees for driving during working, and the voltage of a driving signal is divided into 'synchronous voltage' and 'running-in voltage'. The 'synchronous voltage' is the starting voltage of the motor and is used for motor synchronization; after the motors are synchronized, the voltage of the driving signal is switched and stabilized at the running-in voltage for a long time, and the running-in of the motors is driven; the process of switching the 'synchronous voltage' to the 'running-in voltage' requires a smooth transition without sudden changes.
FIG. 2 is a system block diagram of a multi-channel motor power supply 3, which is composed of a motor power supply lower computer 9 and 8 output channels 10-17 connected in parallel. The motor power supply lower computer 9 is designed based on an FPGA, is connected with the upper computer 7 through the RS458 communication bus 6, receives instructions of the upper computer, and sets 8 output channels 10-17. The 8 output channels 10-17 are mutually independent and respectively consist of a digital-to-analog conversion unit and a three-phase power amplification unit; under the control of the lower motor power supply computer 9, each output channel can drive one three-floating inertial instrument floater 1 to run in. Taking the 1 st output channel 11 as an example, the motor power supply lower computer 9 is directly connected with the three-phase power amplification unit 26, and controls the three-phase power amplification unit 26 to output three-phase square wave signals with the frequency of 1kHz and the phase difference of 120 degrees and perform power amplification; the motor power supply lower computer 9 is connected with the three-phase power amplification unit 26 through the digital-to-analog conversion unit 18, and sets the voltage of the three-phase driving signal output by the three-phase power amplification unit 26. Similarly, the remaining 7 output channels 11-17 of the multi-channel motor power supply 3 are similar to the 1 st output channel 10.
After the multi-channel motor power supply 3 is powered on, the multi-channel motor power supply is in a standby state, the 8 paths of output channels 10-17 are in an enable state (the output signal is 0V), and the upper computer 7 performs parameter binding and enable output on each output channel of the multi-channel motor power supply 3. Taking the 1 st output channel 10 as an example, after the upper computer 7 binds and enables the running-in parameters (including "synchronous voltage", "synchronous time", "voltage reduction slope", "running-in voltage" and the like) of the 1 st output channel to the motor power supply lower computer 9, the motor power supply lower computer 9 starts the three-phase power amplification unit 26 of the channel according to the instruction of the upper computer, outputs three-phase square wave signals with the frequency of 1kHz and the phase difference of 120 degrees, and sets the digital-to-analog conversion unit 18 to set the voltage of the output signals as "synchronous voltage" to perform the synchronization of the three-floating inertial instrument floater 1; in the synchronization stage, the motor power supply lower computer 9 starts a timer to time the synchronization stage; when the timing time meets the set value of 'synchronous time', the digital-to-analog conversion unit 18 is set according to the set value of 'voltage reduction slope', the output voltage is stably transited to the running-in voltage, and the three-floating inertial instrument floater 1 is driven to run in. The working process of the rest 7 output channels 10-17 of the multi-channel motor power supply 3 is the same as the working process of the 1 st output channel 10.
FIG. 3 is a system block diagram of the multi-channel electrical signal monitoring module 2, which is composed of an electrical signal monitoring module lower computer 34 and 8 monitoring channels 35-42, wherein the upper computer 7 is connected with the 8 electrical signal monitoring channels 35-42 in parallel through an RS458 communication bus 6 and the electrical signal monitoring module lower computer 34. The 8-path monitoring channels 35-42 are mutually independent and are correspondingly connected with 8 output channels 10-17 of a multi-channel motor power supply to collect running-in voltage and running-in current of the three-floating inertial instrument floater 1. The lower computer 34 of the electric signal monitoring module is designed based on an FPGA, is automatically started when being electrified, and adopts a response type working mode, namely, the upper computer 7 sends query instructions to the lower computer 34 of the electric signal monitoring module periodically at regular time, and the lower computer 34 of the electric signal monitoring module reads the voltage and the current of three-phase driving signals of the three-floating inertial instrument floater 1 of each channel according to the instructions of the upper computer, and transmits the three-phase driving signals back to the upper computer 7 as responses after being packaged.
FIG. 4 is a block diagram of the 1 st electrical signal monitoring channel 35 of the multi-channel electrical signal monitoring module, which is composed of 3 voltage meters 43-45 and 3 current meters 46-48. The A, B, C three-phase output of the 1 st path output channel 11 of the motor power supply is correspondingly connected with the three-floating inertial instrument floater 1 through the A-phase current meter 46, the B-phase current meter 47 and the C-phase current meter 48 respectively, and drives the three-floating inertial instrument floater 1 to run in; the lower computer 34 of the multi-channel electric signal monitoring module is connected with the A-phase current meter 46, the B-phase current meter 47 and the C-phase current meter 48 in parallel and used for collecting three-phase driving current of the three-floating inertial meter floater 1. Similarly, the lower computer 34 of the multi-channel electric signal monitoring module is connected with the phase a and the phase B output of the 1 st output channel 11 of the motor power supply in parallel through an AB phase voltage meter 43, connected with the phase a and the phase C output of the 1 st output channel 11 in parallel through an AC phase voltage meter 45, and connected with the phase B and the phase C output of the 1 st output channel 11 in parallel through a BC phase voltage meter 45, and collects the drive voltages of the phase AB, the phase AC and the phase BC of the three-floating inertial instrument floater 1. The states of the rest 7 paths of electric signal monitoring channels 36-42 of the multi-channel electric signal monitoring module 2 are consistent with that of the 1 st path of electric signal monitoring channel 35, the rest 7 paths of electric signal monitoring channels are respectively composed of 3 voltmeters and 3 ammeters, the connection relation between the rest 7 paths of output channels 11-17 of the multi-channel motor power supply and the connection relation between the 1 st path of electric signal monitoring channel 35 and the multi-channel motor power supply and the 1 st path of output channel are the same, and the driving voltages and the driving currents of the rest 7 paths of output channels 11-17 are collected.
FIG. 5 is a block diagram of a multi-channel temperature acquisition module 4, which is composed of a temperature conversion circuit 49 and 8 temperature acquisition probes 50-57 and is used for monitoring the surface temperature of a floater in the running-in process. The upper computer 7 is connected with the 8 temperature acquisition probes 50-57 in parallel through the RS485 communication bus 6 and the temperature conversion circuit 49. The 8-path temperature acquisition probes 50-57 are miniaturized thermistor probes, are adhered to the surface of the floater 1 of the three-floating inertial instrument and acquire the surface temperature of the floater; the temperature conversion circuit 49 is electrified and automatically started, adopts a response type working mode, receives a temperature acquisition command sent by the upper computer 7, converts the resistance values of the 8 paths of temperature acquisition probes 50-57 into temperature values, and packs the temperature values to be transmitted back to the upper computer 7 as a response.
The program control incubator 5 adopts a mature product on the market and is used for providing a temperature field environment for the three-floating inertial instrument floater 1 when the three-floating inertial instrument floater works normally in the instrument. The program control incubator 5 is connected with an upper computer 7 through an RS485 communication bus 6, and the work of the program control incubator is controlled by the upper computer 7. The program control incubator 5 is in a standby state after being electrified, and the upper computer 7 sends an enabling instruction to enable the program control incubator to work after setting parameters such as 'target temperature' and 'temperature rise rate' of the program control incubator through a parameter binding instruction. After the program control incubator 5 is enabled, the temperature is first raised according to a set value of the temperature rise rate, and when the temperature in the incubator reaches a set value of the target temperature, the incubator is switched to the heat preservation mode, so that the temperature in the incubator is maintained at the target temperature. In the working process of the program control incubator 5, the upper computer 7 sends an enable-off instruction to immediately switch the program control incubator 5 to a standby state, and the program control incubator 5 stops working. In addition, the upper computer can also inquire parameters such as the temperature in the program control incubator 5, the target temperature, the temperature rise rate and the like through the inquiry instruction.
Fig. 6 is a block diagram of the alarm module 8, which is composed of an alarm lower computer 58, a three-color alarm lamp 59 and a buzzer 60, wherein the three-color alarm lamp 59 can display three colors of green, yellow and red. The upper computer 7 is connected with a three-color alarm lamp 59 and a buzzer 60 in parallel through an RS485 communication bus 6 and an alarm lower computer 58. In the running-in process, the upper computer 7 monitors the running-in process in real time, and triggers the alarm lower computer 58 to drive the three-color alarm lamp 59 and the buzzer 60 to work according to the running-in condition. Wherein, the tricolor alarm lamp 59 displays green and the buzzer 60 does not alarm, indicating that the running-in of the channel is finished; a three-color warning light 59 shows red and the buzzer 60 does not warn, indicating that all channels are running in; a three-color warning light 59 displays yellow and the buzzer 60 does not warn, indicating that there is channel running-in data out of tolerance, but continuing running-in has no damage to the float or equipment of the channel; a three-color warning light 59 displays a red color and a buzzer 60 alerts that a running-in channel has a running-in failure, which may cause damage to the float or equipment of the channel.
The upper computer 7 is used as a control core of the floater running-in device, and adopts an NI PXI industrial personal computer to operate floater running-in upper computer software. The upper computer software is compiled by adopting LabVIEW language, and has the main functions of: firstly, a communication self-checking function after the equipment is powered on checks the communication between the upper computer 7 and each functional module to ensure that the instruction and data transmission is normal; secondly, controlling and coordinating the operation of modules such as a multi-channel electric signal monitoring module 2, a multi-channel motor power supply 3, a multi-channel temperature acquisition module 4, a program control incubator 5, an alarm module 8 and the like; reading the monitoring quantities of the multi-channel electric signal monitoring module 2 and the multi-channel temperature acquisition module 4 periodically at regular time, and performing data processing, displaying, storing and generating a report; monitoring and grading abnormal running-in real time to avoid possible damage to the float or equipment; and fifthly, man-machine interaction is carried out, an interface is provided for manually adjusting the control parameters of each functional module and the judgment threshold value of running-in abnormity, and manual intervention in the running-in process is realized.
The three-floating inertial instrument floater running-in device is powered on under the control of the master control switch, and all the modules are powered on uniformly after the master control switch is closed. The multi-channel electric signal monitoring module 2 and the multi-channel temperature acquisition module 4 are powered on and automatically started, adopt a 'response type' working mode, receive an inquiry instruction sent by the upper computer 7, acquire electric signal running-in voltage, running-in current and floater surface temperature of corresponding channels and transmit the electric signal running-in voltage, the running-in current and the floater surface temperature back to the upper computer as responses; the alarm module 8 is electrified and automatically started, and triggers a three-color alarm lamp 59 and a buzzer 60 according to the instruction of the upper computer to remind an operator of paying attention; the multichannel motor power supply 3 and the program control incubator 5 are in a standby state after being electrified, and an upper computer 7 is required to perform parameter binding and enabling work on the multichannel motor power supply and the program control incubator; the upper computer 7 is electrified and automatically started, an operator opens 'float running upper computer software', and corresponding multi-channel motor power supply output channels 10-17 are started to drive the three-float inertial instrument float 1 to run in according to the connection condition of the three-float inertial instrument float 1 and 8 channels 35-42 of the multi-channel electric signal monitoring module.
The float runs on the upper computer software, the float running-in system has the control and monitoring functions of 8 running-in channels, the running-in channels are used as mapping of all channels of a motor power supply, an electric signal monitoring module and a temperature acquisition module in the upper computer, and the serial numbers of the running-in channels correspond to the serial numbers of all channels of the modules one by one. The main operation interface of the software of the upper computer of the float running is used as an interface of man-machine interaction of running-in equipment, and the interface comprises channel switches of 8 running-in channels and is used for controlling the starting and stopping of each running-in channel; the device comprises 8 display windows, a power supply and a power supply, wherein the display windows are used for displaying three-phase voltage, three-phase current and floater surface temperature of floater driving signals of each running-in channel; comprises an incubator setting key used for controlling the program control incubator to work; the alarm clearing button is the same as the initialization alarm module. The detailed operation steps are as follows:
(1) after the floater runs to the upper computer software to be started, 8 channel switches are in a 'forbidden' state, the upper computer software sends a handshake instruction to carry out self-check on the communication functions of the upper computer 7 and each functional module, and if the self-check is correct, the 8 channel switches are switched to an 'enabled' state (if the self-check is wrong, an alarm is triggered);
(2) after the 8 channel switches are switched to be in an 'enabling' state, an operator clicks the corresponding channel switch in the upper computer according to the connection condition of the three-floating inertial instrument floater 1 and the 8 monitoring channels 35-42 of the multi-channel electric signal monitoring module to trigger the three-floating inertial instrument floater 1 of the channel to run in.
(3) When a channel switch of a certain running-in channel is clicked, a running-in parameter confirmation interface is popped up, and the interface comprises parameters of an operator, a product number, a running-in posture, timing power-on, power-on temperature, running-in duration, an abnormal threshold value and the like of the running-in channel to be adjusted and confirmed. The default values of the 'operator' and the 'floater number' are set values of the channel running in last time, and the operator can adjust the channel according to actual conditions (the default value is maintained when the channel is not adjusted); the default values of the other parameters are set by the background program according to the configuration file, an operator can temporarily adjust the default values in the interface, and the adjustment items are only suitable for running in the time (the relevant parameters can also be modified in the configuration file, and the modification items are effective for a long time). After the parameters are adjusted, clicking a 'confirmation' key to finish the parameter confirmation of the running-in channel of the road. And then, the upper computer software starts a delay waiting timer of the channel to time the waiting time, and simultaneously, the surface temperature of the three-floating inertial instrument floater (1) of the channel is periodically inquired.
(4) Completing the setting of all the rest channels to be run-in similar to the steps (2) to (3);
(5) after all channels to be run in are set, clicking a 'incubator setting' key on a main operation interface of the upper computer, setting or adjusting 'target temperature' and 'temperature rise rate' of the program control incubator 5 in a popped 'incubator parameter confirmation' interface (default values of two parameters are set values of last running in, an operator can adjust according to actual conditions), and after clicking the 'confirmation' key, binding the 'target temperature' and the 'temperature rise rate' of the program control incubator 5 and enabling the program control incubator to work through parameter binding instructions and enabling instructions by upper computer software. The program control incubator 5 firstly heats up according to a set value of 'temperature rise rate', and switches to a heat preservation mode when the temperature in the incubator reaches a set value of 'target temperature', so that the temperature in the incubator is kept at the 'target temperature';
(6) when the timing value of a delay waiting timer of a certain channel reaches a set value of 'timing power-on' in a 'running-in parameter confirmation interface' of the channel and the surface temperature of a floater reaches a set value of 'power-on temperature', upper computer software sends a parameter binding instruction and an enabling instruction to a multi-channel motor power supply 3, binds and enables output of parameters such as 'synchronous voltage', 'running-in voltage', 'synchronous time' and 'voltage reduction slope' of the channel corresponding to the multi-channel motor power supply 3, and drives a three-floating inertial instrument floater 1 connected with the channel to start running-in; meanwhile, the upper computer software monitors the synchronous voltage, the synchronous current, the running-in voltage and the running-in current of the three-floating inertial instrument floater 1 by reading the monitoring amount of the corresponding electric signal monitoring channel. In addition, in the synchronization stage and the voltage reduction transition stage, the upper computer software is used for timing the synchronization time and the transition time.
(7) In the running-in process, the upper computer software periodically inquires the monitoring quantities of the multi-channel electric signal monitoring channel 2 and the multi-channel temperature acquisition module 4, displays the monitoring quantities in real time in a main interface of the upper computer and stores the monitoring quantities in a record file; meanwhile, the upper computer software carries out real-time monitoring on the running-in abnormity by comparing the monitoring quantity with an abnormal threshold value set in a running-in parameter confirmation interface of the channel; in addition, the upper computer software also times the running-in duration of each running-in channel and displays the running-in duration in the main interface;
(8) when the running-in timing of a certain running-in channel reaches a set value of running-in duration in a running-in parameter confirmation interface of the channel, the upper computer software enables the corresponding output channel of the multi-channel motor power supply 3 to be disconnected, and the running-in of the channel floater is stopped; in addition, in the running-in process, if an operator clicks a channel switch of a certain running-in channel again, the corresponding output channel of the multi-channel motor power supply 3 can be manually turned off and enabled, and the running-in of the channel floater is stopped under the condition that the set value of the running-in time is not reached;
(9) after one output channel of the multi-channel motor power supply 3 is disconnected and enabled, the upper computer software pops up an inertia time test interface, the monitoring quantity of the corresponding monitoring channel of the multi-channel electric signal monitoring module 2 is continuously read, the motor inertia time of the three-floating inertia instrument floater 1 of the channel is tested, and the inertia time test value is displayed on the inertia time test interface and is stored in an original recording file;
(10) after the inertia time test of a certain channel is finished, the upper computer software stops the recording of the monitoring data of the channel, generates and stores a data report of the running-in of the channel (the data report comprises a floater number, a running-in equipment number and a channel number, an operator, a running-in posture, the starting and finishing time of the running-in, the inertia time, a synchronous voltage, a synchronous current, a running-in voltage, a running-in current and the mean value and the extreme difference of the surface temperature of the floater in every two hours);
(11) the upper computer software inquires the states of other running-in channels, and if the running-in channel still exists, the alarm module 8 is triggered to drive the three-color alarm lamp 59 to display green color to remind an operator that the running-in of the three-floating inertial instrument floater 1 is finished; if all the channels are completely run in, the triggering alarm module 8 drives the three-color alarm lamp 59 to display red color, reminds an operator of finishing running in all the channels, sends an enable-break instruction to the program-controlled incubator 5, and stops the incubator from working.
(12) After all the channels are run-in, the operator closes the upper computer operating system and disconnects the master control switch to cut off the power of the running-in equipment.
In the running-in process, the upper computer software processes the acquired values of the multi-channel electric signal monitoring module 2 and the multi-channel temperature acquisition module 4 in real time, compares the acquired values with an abnormal threshold value set in a running-in parameter confirmation interface of a corresponding channel, and monitors the running-in state of each channel in real time. The abnormal threshold is divided into a deviation threshold and an absolute value threshold, wherein the deviation of the deviation threshold relative to a preset value in a running-in parameter confirmation interface of the channel is used as an abnormal monitoring item (the preset value of the transition time is obtained by subtracting the synchronous voltage from the running-in voltage and then dividing the subtraction result by a voltage reduction slope) for the synchronous voltage, the running-in voltage, the synchronous time length and the voltage reduction transition time length; the absolute value threshold takes the three-phase voltage symmetry, the synchronous current, the running-in current and the measured value of the surface temperature of the floater as an abnormal monitoring item. The running-in state is divided into three states of 'normal', 'out-of-tolerance' and 'fault', and the dividing criteria of the three states are shown in table 1.
TABLE 1 three state division criteria for float running-in
Figure BDA0002130372530000191
In table 1, "normal" indicates that the running-in process is normal; "out-of-tolerance" means that some abnormal monitoring items are out-of-tolerance, but the float 1 or the running-in equipment cannot be damaged by continuous running-in; by "malfunction" is meant that the device or float may have functional problems and continued running in may cause damage to the float 1 or running-in device. Both the out-of-tolerance and the fault belong to running-in abnormity, and the upper computer software performs graded alarm due to different influences caused by the two types of abnormity. In the running-in process, if the 'out-of-tolerance' abnormality occurs in a certain channel, the upper computer software controls the lower computer 58 of the alarm module to drive the three-color alarm lamp 59 to display that the yellow buzzer 60 does not sound; if a certain channel is abnormal in 'failure', the upper computer software immediately controls the multi-channel motor power supply 3 to enable the failure channel to be disconnected and stop the running-in of the channel floater, and controls the alarm module lower computer 58 to drive the three-color alarm lamp 59 to display red color and the buzzer 60 to buzz and alarm to remind an operator of paying attention.
The 'abnormal threshold' in table 1 is set by the upper computer software reading configuration file, and the operator can perform temporary adjustment on the 'running-in parameter confirmation interface' (the validity of the adjustment item is only suitable for the running-in at this time); the operator can also adjust by modifying the relevant parameter items in the configuration file, and the adjustment items will have long-term effectiveness.
After the operator handles the abnormity, the upper computer 7 is required to send a 'clear' instruction, and the alarm module 8 is initialized, so that the alarm module can be continuously triggered when the abnormal running-in event occurs again; under the condition that the 'out-of-tolerance' abnormal alarm is not cleared, if the 'fault' abnormality occurs, the upper computer software automatically switches the 'out-of-tolerance' alarm into the 'fault' alarm and executes the preset processing of the 'fault' abnormality.
The invention has not been described in detail in part of the common general knowledge of those skilled in the art.

Claims (9)

1. The utility model provides a three float inertial instrument floats running-in equipment which characterized in that: this running-in equipment includes multichannel motor power, multichannel signal of telecommunication monitoring module, multichannel temperature acquisition module, programme-controlled incubator, alarm module and host computer, wherein:
the multi-channel motor power supply comprises a motor power supply lower computer and a plurality of output channels, wherein each output channel outputs a three-phase square wave signal, and the three-phase square wave signal output by each output channel drives a floater to run in;
the multi-channel electric signal monitoring module is called as an electric signal monitoring module for short, and the number of monitoring channels and the channel number of the electric signal monitoring module are consistent with those of a motor power supply output channel; the monitoring channels of the electric signal monitoring module are mutually independent, each channel comprises a set of electric signal measuring unit, the electric signal measuring units collect three-phase voltage and three-phase current of three-phase driving signals of the floater, the electric signal monitoring module adopts a response mode to collect signals, namely, an upper computer periodically sends collection instructions through a communication bus at regular time, and the electric signal monitoring module collects collection values of related monitoring channels according to the instructions and collects the results to be used as a response to be transmitted back to the upper computer;
the multi-channel temperature acquisition module comprises a plurality of channels for acquiring temperature of the surface of the floater in the running-in process, and the number of the channels for acquiring temperature and the serial number of the channels correspond to the power output channels of the motor one by one;
the program control incubator is used for heating the floater of the three-floating inertial instrument to be tested and providing a temperature field environment for the floater of the three-floating inertial instrument to be tested;
the alarm module is used for prompting abnormal running-in;
the upper computer is used for controlling and coordinating a motor power supply, an electric signal monitoring module, a multi-channel temperature acquisition module, a program control incubator and an alarm module.
2. The three-float inertial meter float running-in device of claim 1, characterized in that: the core of the floater of the three-floating inertial instrument to be tested is a hemispherical dynamic pressure hysteresis motor, the motor is driven by a three-phase square wave signal with the running-in frequency of 1kHz and the phase difference of 120 degrees, and the voltage of the driving signal is divided into 'synchronous voltage' and 'running-in voltage'; wherein, the 'synchronous voltage' is the starting voltage of the motor and is used for the motor synchronization; after the motors are synchronized, the voltage of the driving signal is switched and stabilized at the running-in voltage for a long time, and the running-in of the motors is driven; the transition process of switching the synchronous voltage into the running-in voltage is smooth and has no sudden change.
3. The three-float inertial meter float running-in device of claim 1, characterized in that: each output channel of the motor power supply is mutually independent, each output channel comprises a three-phase power amplification unit and a digital-to-analog conversion unit, the three-phase power amplification unit generates a three-phase square wave signal with the frequency of 1kHz and the phase difference of 120 degrees and performs power amplification under the control of a lower computer of the motor power supply, and the digital-to-analog conversion unit is used for adjusting the voltage of the three-phase square wave signal; the motor power supply is in a standby state after being electrified, each output channel outputs no enable, namely does not output signals, the motor power supply is controlled by an upper computer through a communication bus, and controlled items comprise output enable and off enable operation, setting of 'synchronous voltage' and 'running-in voltage', and duration of the synchronous voltage, namely 'synchronous time' setting, and setting of 'voltage reduction slope' for switching the 'synchronous voltage' into the 'running-in voltage'; when the upper computer enables a certain channel of the motor power supply, the enabled channel outputs a three-phase driving signal, the initial voltage of the three-phase driving signal is synchronous voltage, after a period of time of a set value of synchronous time, the output voltage is reduced from the synchronous voltage to running-in voltage at a constant speed by a set value of voltage reduction slope, and is stabilized at the running-in voltage for a long time, and the upper computer performs off enabling operation on the channel.
4. The three-float inertial meter float running-in device of claim 1, characterized in that: the multichannel temperature acquisition module comprises a temperature conversion circuit and a plurality of temperature acquisition probes, the temperature acquisition probes are miniaturized probes, the temperature acquisition probes are adhered to the surface of the floater, the temperature acquisition probes are used for acquiring the surface temperature of the floater, and the number of the temperature acquisition probes is consistent with the number of output channels of the motor power supply; the temperature conversion circuit receives a temperature acquisition instruction sent by the upper computer at regular time, performs data processing on the acquisition value of each temperature acquisition probe according to the temperature acquisition instruction, and returns the processing result to the upper computer.
5. The three-float inertial meter float running-in device of claim 1, characterized in that: the program control incubator is in a standby state after being electrified, the upper computer is required to send an enabling instruction through the communication bus to enable the program control incubator to work, the program control incubator is heated, and the internal temperature is kept at a target temperature; when the program control incubator works, if the upper computer sends an enable-off instruction, the program control incubator is switched to a standby state, and the program control incubator immediately stops working; the upper computer sets the target temperature and the temperature rise rate of the program control incubator through the binding instruction and reads the in-incubator temperature, the target temperature and the temperature rise rate parameters of the program control incubator through the query instruction.
6. The three-float inertial meter float running-in device of claim 1, characterized in that: alarm module is used for the unusual suggestion of running-in, comprises tristimulus designation alarm lamp and bee calling organ, and at the running-in-process, the host computer in case monitors the running-in unusual, just enables tristimulus designation alarm lamp and bee calling organ through communication bus and reports to the police in grades, when abnormal handling back, needs the host computer to send "reset" order and resets alarm module, later if appear unusually again, alarm module is still triggered and reports to the police.
7. The three-float inertial meter float running-in device of claim 1, characterized in that: the upper computer runs software of the floater running on the upper computer, and controls and coordinates the work of a motor power supply, an electric signal monitoring module, a multi-channel temperature acquisition module, a program control incubator and an alarm module; the system has the functions of data acquisition and processing, periodically reads the monitoring quantities of the electric signal monitoring module and the multi-channel temperature acquisition module at regular time, processes, displays and stores data and generates a report; the system has the functions of real-time monitoring and automatic processing of running-in abnormity, has a human-computer interaction function, and provides an interface for adjusting the control parameters of each functional module and the judgment threshold value of the running-in abnormity.
8. The three-float inertial meter float running-in device of claim 1, characterized in that: the running-in equipment is powered on by the master control switch, and after the master control switch is closed, all modules of the equipment are powered on together, wherein the multichannel electric signal monitoring module, the multichannel temperature acquisition module and the alarm module directly enter a normal working state after being powered on, and wait for an upper computer to execute corresponding operation according to instructions; the program control incubator is in a standby state after being electrified, and starts to work after being enabled by the upper computer, and before enabling, the upper computer is required to bind the target temperature and the temperature rise rate of the program control incubator; the multichannel motor power supply is in a standby state after being electrified, and the upper computer controls the multichannel motor power supply to work.
9. The three-float inertial meter float running-in device of claim 7, characterized in that: the software of the floater running upper computer has a communication bus self-checking function, after the software of the upper computer is started, the communication functions of the upper computer and each functional module are checked by sending a handshake instruction, and if the upper computer fails to handshake with one functional module, a prompt box is popped out from an operation interface to prompt communication abnormity; and if the self-checking is correct, executing subsequent running-in control operation.
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