CN220962172U - Material object signal and simulation signal disconnection switching module for system verification - Google Patents

Abstract

The utility model provides a system verification real signal and simulation signal disconnection switching module, which belongs to the technical field of electric equipment communication control and comprises an Ethernet interface and a CDI display control signal interface, wherein the Ethernet interface is connected with an MCU microprocessor; the MCU microprocessor is also connected with a plurality of double-pole double-throw relay groups and a single-pole single-throw relay group; one end of the single-pole single-throw relay set is connected with one end of the double-pole double-throw relay set, and the other end of the single-pole single-throw relay set is connected with an X3 common signal interface; the other end of the double-pole double-throw relay group is connected with an NC end signal interface and an NO end signal interface. The utility model bundles the complicated I/O signals to the signal adapting module or unit, and the software of the verification test system performs disconnection and switching control on the real object and the simulation signal according to the test flow and the requirement; the remote unified control can be realized, the Ethernet control circuit is used for replacing the signal circuit to surround, and the signal terminal can be switched nearby, so that the signal time delay is eliminated.

Description

Material object signal and simulation signal disconnection switching module for system verification

Technical Field

The utility model relates to the technical field of communication control of electrical equipment, in particular to a real signal and simulation signal disconnection switching module for system verification.

Background

Along with the increasing bulkiness and complexity of electromechanical liquid control systems in the fields of aviation, aerospace and engines, the verification of the effectiveness, the compliance, the stability and the adaptability of the control system is also more and more important, and the physical simulation environment for various tests of the control system is impossible and uneconomical in the research and development stage of the control system, and the verification working environment of the control system is generally built in a semi-physical simulation mode.

The current system verification implementation scheme is that after the conversion and conditioning of the physical and simulation signals, a special switch matrix board card of a measurement and control computer (PCI, CPCI, PXI and other bus types) or a special switch matrix accessory module of an instrument and meter are adopted, and the software of a verification test system realizes signal selection on the physical and simulation signals by means of disconnection, switching and the like according to the test flow.

The special switch matrix board card for the measurement and control computer is represented by the most representative of the switch matrix board card series of the NI company, and the special switch matrix accessory module for the instrument and meter is represented by the modularized switch matrix of the German (Keysight) company or the data collector matrix switch option.

Because of the complexity of the control system physical object or the simulation signal type and quantity, classification conversion and conditioning are needed, so that the system verification environment is scattered due to signal sources and directions (sensors, actuators and simulators) in engineering realization, and the defects of huge system, scattered lines/wiring harnesses, complex electromagnetic interference factors and the like are caused; meanwhile, because disconnection and switching control of physical and simulation signals are respectively carried out in a measurement and control computer switch matrix board card and an instrument switch matrix module, measurement and control defects such as signal encircling time delay and asynchronous control exist.

Disclosure of utility model

The utility model aims to provide an I/O cluster channel capable of optimizing complicated electrical signals, and a system verification object signal and simulation signal disconnection switching module for centralized and unified disconnection and switching control by test system software through a high-speed network, so as to solve at least one technical problem in the background technology.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a system verification real signal and simulation signal disconnection switching module, which comprises: an Ethernet interface and a CDI display and control signal interface which are connected with the MCU microprocessor; the MCU microprocessor is also connected with a plurality of double-pole double-throw relay groups and a single-pole single-throw relay group; one end of the single-pole single-throw relay set is connected with one end of the double-pole double-throw relay set, and the other end of the single-pole single-throw relay set is connected with an X3 common signal interface; the other end of the double-pole double-throw relay group is connected with an NC end signal interface and an NO end signal interface.

Preferably, in the single pole single throw relay group, disconnection of signal flow is realized by SPST relays, two paths of signals of each channel are disconnected by two SPST relays or one DPDT relay respectively, and the relays are driven to work by GPIO of the MCU microprocessor through a driving circuit.

Preferably, in the double-pole double-throw relay group, the switching of signal flow is realized by the action from the middle arm of the DPDT relay to the normally closed end and the normally open end, two paths of signals of each channel are switched by one DPDT relay, and the relay is driven to work by the GPIO of the MCU microprocessor through a driving circuit.

Preferably, the device further comprises a direct current power supply; after the external power supply is converted by the direct current power supply, the working power supply is provided for the internal circuit of the module.

Preferably, the Ethernet interface is realized by adopting a serial port to Ethernet module, and a TCP/IP protocol stack is integrated inside.

Preferably, the MCU microprocessor adopts an embedded ARM processor and is provided with a universal serial communication interface USART and a universal input/output interface with enough pins.

Preferably, relay driving circuits are connected between the MCU microprocessor and the double-pole double-throw relay set and between the MCU microprocessor and the single-pole single-throw relay set.

Preferably, a darlington transistor matrix drive relay with a transient-like clamp diode is used, wherein the clamp diode also acts as a relay freewheel diode, protecting the drive tube from breakdown by the coil back emf.

The utility model has the beneficial effects that: according to the modularized implementation scheme of the system verification environment, complex I/O signals are clustered to a signal adaptation module or unit, and software of a verification test system performs disconnection and switching control on physical and simulation signals according to the test flow and needs; the signal adapting module or unit is controlled by the measurement and control computer through the Ethernet, can realize remote unified control, is surrounded by the Ethernet control circuit to replace the signal circuit to surround and can be switched nearby at the signal end, so that the signal delay is eliminated, and the control synchronization is achieved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of signal flow disconnection and switching according to an embodiment of the present utility model.

Fig. 2 is a block diagram of a signal disconnection switching module according to an embodiment of the present utility model.

Fig. 3 is a schematic diagram of signal flow disconnection according to an embodiment of the present utility model.

Fig. 4 is a schematic diagram of signal flow switching according to an embodiment of the present utility model.

FIG. 5 is a schematic diagram of an XDQ0032S front panel according to embodiment 1 of the present utility model.

FIG. 6 is a schematic diagram of an XDQ0032S rear panel according to embodiment 1 of the present utility model.

FIG. 7 is a schematic block diagram of an XDQ0032S according to embodiment 1 of the present utility model.

Fig. 8 is a schematic diagram of a signal path switching principle according to embodiment 1 of the present utility model.

FIG. 9 is a schematic diagram of an XDQ0064 front panel constructed in accordance with example 2 of the present utility model.

FIG. 10 is a schematic view of the XDQ0064 rear panel structure according to example 2 of the present utility model.

FIG. 11 is a schematic block diagram of XDQ0064 according to example 2 of the present utility model.

Fig. 12 is a schematic diagram of an independent switching principle of signal paths according to embodiment 2 of the present utility model.

Fig. 13 is a schematic view of the XDQ64L64 front panel structure according to embodiment 3 of the present utility model.

Fig. 14 is a schematic view of the XDQ64L64 rear panel structure according to embodiment 3 of the present utility model.

Fig. 15 is a schematic block diagram of XDQ64L64 according to embodiment 3 of the present utility model.

Fig. 16 is a schematic diagram of the signal path independent disconnection/switching principle according to embodiment 3 of the present utility model.

Fig. 17 is a schematic view of the XDQ6400 front panel structure according to embodiment 4 of the present utility model.

Fig. 18 is a schematic view of the XDQ6400 back panel structure according to embodiment 4 of the present utility model.

Fig. 19 is a schematic block diagram of XDQ6400 according to embodiment 4 of the present utility model.

Fig. 20 is a schematic diagram of the signal path independent disconnection principle according to embodiment 4 of the present utility model.

Fig. 21 is a schematic structural diagram of an XDQ6432S front panel according to embodiment 5 of the present utility model.

Fig. 22 is a schematic structural diagram of an XDQ6432S back panel according to embodiment 5 of the present utility model.

Fig. 23 is a schematic block diagram of XDQ6432S according to embodiment 5 of the present utility model.

Fig. 24 is a schematic diagram of the differential signal switching principle according to embodiment 5 of the present utility model.

Wherein: 1-X3 common signal interface; 2-CDI display and control signal interface; 3-NC end signal interface; a 4-NO end signal interface; a 5-Ethernet interface; 6-a direct current power supply; 7-MCU microprocessor; 8-single pole single throw relay sets; 9-double pole double throw relay sets; 10-relay driving circuit.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by way of the drawings are exemplary only and should not be construed as limiting the utility model.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.

It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, and/or groups thereof.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

In the description of this specification, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present specification, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present technology.

The terms "mounted," "connected," and "disposed" are to be construed broadly, and may be, for example, fixedly connected, disposed, detachably connected, or integrally connected, disposed, unless otherwise specifically defined and limited. The specific meaning of the above terms in the present technology can be understood by those of ordinary skill in the art according to the specific circumstances.

In order that the utility model may be readily understood, a further description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings and are not to be construed as limiting embodiments of the utility model.

It will be appreciated by those skilled in the art that the drawings are merely schematic representations of examples and that the elements of the drawings are not necessarily required to practice the utility model.

As shown in fig. 1 to 4, in a specific embodiment, a signal disconnection switching module is provided, in which signal flow is controlled by a Single Pole Single Throw (SPST) relay, and switching control is achieved by a Double Pole Double Throw (DPDT) relay. Each channel is disconnected by two SPST relays, and then a DPDT relay is connected in series to realize synchronous switching of two-way signals, so that disconnection switching of a pair of differential signals is realized. The principle is shown in figure 1.

As shown in fig. 2, the signal disconnection switching module is composed of a direct-current power supply 6, an ethernet interface 5, an MCU microprocessor 7, a relay driving circuit 10, a Single Pole Single Throw (SPST) relay group 8, a Double Pole Double Throw (DPDT) relay group 9, and the like. The X3 public signal interface 1 is connected with the single-pole single-throw relay set 8, the CDI display control signal interface 2 is connected with the Ethernet interface 5 and the MCU microprocessor 7, and the double-pole double-throw relay set 9 is connected with the NC end signal interface 3 and the NO end signal interface 4.

The signal disconnection switching module is powered by the outside, and after being converted by the direct current power supply 6, the signal disconnection switching module provides working power supply for an internal circuit of the module, and comprises: MCU microprocessor 7, network interface, etc., relay drive, SPST relay set, DPDT relay set, etc. The direct current power supply is built by a DC-DC converter and an LC filter circuit, and is provided with an indicator lamp to identify the working state.

The Ethernet interface provides a remote control way for the signal disconnection switching module, the interface circuit realizes that the Ethernet communication interface is converted into a universal serial communication interface USART, and data is synchronously and transparently transmitted between the MCU microprocessor and a remote upper computer. The Ethernet interface is realized by adopting a serial port to Ethernet module (super network port), and a TCP/IP protocol stack is integrated inside, so that the networking function of the embedded equipment can be easily finished.

The MCU microprocessor is used as a control core of the module, receives working instructions transmitted by the upper computer through the Ethernet, and implements the internal management of the module, the SPST relay set and the actions of the DPDT relay set according to the instruction requirements, thereby completing the signal disconnection and switching functions of the module. The MCU microprocessor adopts a minimum system built by an STM company and an NXP company embedded ARM processor, and is provided with a universal serial communication interface USART and a general purpose input/output interface (GPIO) with enough pins.

For the relay driving circuit, a general purpose input/output interface (GPIO) of the embedded ARM processor has no capability of directly driving relay type power devices, and is driven by Darlington transistors. In order to reduce the device occupation area, a Darlington transistor matrix driving relay with a transient clamping diode is adopted, wherein the clamping diode is also used as a follow current diode of the relay, and the driving tube is protected from breakdown by the back electromotive force of a coil.

For a Single Pole Single Throw (SPST) relay group, disconnection of signal flow is realized by SPST relays, where two paths of signals (high and low signal pairs of differential signals) of each channel are disconnected by two SPST relays respectively, and the relays are driven to work by GPIOs of an MCU microprocessor through a driving circuit, as shown in fig. 3. As the electrical signal disconnection of the signal level, the SPST relay of the module selects a microminiature high-load signal relay and has the main parameter characteristics of large switching current, millisecond (mS) level action/release time and the like.

For a Double Pole Double Throw (DPDT) relay group, switching of signal flow is achieved by the action of the arms (COM) in the DPDT relay to the two ends of Normally Closed (NC) and Normally Open (NO), where two signals (high and low signal pairs of differential signals) of each channel are switched by one DPDT relay, and the relay is driven to work by the GPIO of the MCU microprocessor through a driving circuit, as shown in fig. 4. As the electrical signal switching of the signal level, the DPDT relay of the module selects a microminiature high-load signal relay and has the main parameter characteristics of large switching current, millisecond (mS) level action/release time and the like.

For the input and output signal interfaces of the module, the input signal of the signal disconnection switching module is a signal flow which needs to be disconnected and switched, and the output signal is a signal flow which is disconnected and switched, namely, the input signal flow is switched to be output at two ends of Normally Closed (NC) and Normally Open (NO) as required after disconnection control. In order to avoid difficulties in wiring harness layout and signal electromagnetic interference when the module is applied due to the mixing of output signals at two ends of input and output, particularly Normally Closed (NC) and Normally Open (NO), the module is provided with three signal interfaces: a Common (COM) end input signal interface, a Normally Closed (NC) end output signal interface, and a Normally Open (NO) end output signal interface. The relation of the signal flows of the three signal interfaces of the module can be seen in fig. 1 and 2.

Example 1

As shown in fig. 5 to 8, the embodiment 1 provides an XDQ0032S32 channel two-way signal switching module, wherein the XDQ0032S32 channel two-way signal switching module controls the internal MCU to act on the relay contacts through ethernet communication, so as to realize the switching of 32 channel differential signals (64 paths in total), thereby providing a solution for remote program control switching of signals for intensive automatic measurement and control, and having good applicability for various systems because of the control of the ethernet communication.

The product specification parameters of the XDQ0032S32 channel two-way signal switching module described in this embodiment 1 are as follows: the external dimension is 186×197×35mm (L×W×H), the width of the mounting lug is 227mm, and the whole body is oxidized by sand blasting; the weight is 1000g; and (3) power supply: working power supply: DC12V; power consumption: 65mA (Min.), 250mA (Type), 450mA (Max.).

The signal switching parameters are as follows: the signal channel is a 32-way DPDT switch; the maximum switching time is less than or equal to 3ms; rated switching load is 2A@30VDC; the maximum switching voltage is 220VDC/250VAC; the maximum switching current is 3A@30VDC.

As shown in fig. 5 and 6, the XDQ0032S front panel in the present embodiment is configured with a 32-channel two-way COM signal interface: 1 HDR78DB hub connector X3, DC-0625.5 X2.5 mm DC power socket, 1 HDR15DB hub connector CDI and RST switch. The X3 connector and CDI connector signal pins, the RST switch is used as a hardware 'module to restore factory settings and restart' switch. The XDQ0032S back panel is configured with an ethernet RJ45 interface jack, a 32 channel two-way signal interface: 2 HDR78DB female connectors X1 (NC normally closed), X2 (NO normally open).

As shown in fig. 7 and 8, the switching of the 32-channel two-way signal is realized by 32 DPDT relays, and the switching principle of a pair of differential signals is shown in fig. 8. The signal path DPDT switches the relay, NC end and COM end are connected in normal state-UUT and physical signal interconnection, NO end and COM end are connected in relay action (suction) time-UUT switches to and interconnects with the simulation signal. The 64-channel signal COM end is input/output to the XDQ0032S module through an HDB78 type connector (needle seat) X3, and the NC and NO end signals are input/output to the XDQ0032S module through 2 HDB78 type connectors (hole seats) X1 and X2.

In the XDQ0032S of this embodiment, the ethernet communication is operated in UDPServer operation mode, in which the XDQ0032S does not verify the source IP address, and after each UDP packet is received, the destination IP is changed to the data source IP and the port number, and when the data is recovered, the IP and the port number of the last communication are sent. The 32-channel two-way (32-way differential) signal switching DPDT switch is controlled by a 9-byte command. The upper and lower computers (MCU) receive/transmit two kinds of instructions of 9 bytes and 13 bytes, and the instructions need to be distinguished by instruction IDs.

The XDQ0032S module can drive 4 working state indicator lamps through a CDI interface: 1) Power module Power-on indication-internal current limiting resistor is added to directly light the LED. 2) Run module running instruction-driven by GPIO, software flashing in the process of starting up self-checking, and turning on when entering the upper computer Ethernet command monitoring, and turning on by software timing. 3) Link network IP connection indication—using GPIO drivers. After the software completes the start-up self-check, the upper computer monitors that the Ethernet communication check command is sent once every 5 seconds, and the MCU software determines that the module is actually connected with the target IP after regularly receiving the command, thereby lighting the LINK lamp. 4) Act network data interaction indication-using GPIO drive, the software is lightened when there is data interaction between USR-K7 serial ports RX and TX, and no interaction is extinguished.

The Ethernet protocol of the XDQ0032S module follows the UDP communication protocol, 1) factory default setting is restored, and upper computer software personnel can be implemented through XDQ0032S setting detection software, and can also be implemented through a command of 'module restoration factory setting and restarting' in the communication protocol; hardware personnel may be implemented through XDQ0032S panel RST (CFG) buttons or CFG pin signals of a CDI interface. When the hardware is implemented, the factory default setting can be restored after the RST (CFG) button is pressed or CFGSW signals are pulled down and the module is powered on under the condition that the XDQ0032S module is powered off and kept for 5 seconds. 2) Aiming at the XDQ0032S module, the network parameters IP and ports can be set and inquired by the upper computer running 'person networking K7 module setting software', the static IP of the module is required to be in the same network segment with the IP address of the upper computer, and the port number of the module takes the range of 0-65535. 3) And when the network parameters are set, the static IP and the local port number of the K7 network-to-serial port module (namely the XDQ0032S module) are set only by a user. Port 1 mode UDPServer, subnet mask (hold default "255.255.255.0"), gateway (hold default "192.168.1.1") user does not change settings. 4) The serial parameters do not require user modification.

Example 2

As shown in fig. 9 to 12, embodiment 2 provides an XDQ 006464-way signal switching module, and the XDQ 006464-way signal switching module controls the internal MCU to act on the relay contacts through ethernet communication, so as to realize independent switching of 64-way signals, and provides a solution for remote program control switching of signals for intensive automatic measurement and control, and has good applicability for various systems because of the control of ethernet communication.

The product specification parameters of the XDQ006464 channel two-way signal switching module described in this embodiment 2 are as follows: the external dimension is 186×197×35mm (L×W×H), the width of the mounting lug is 227mm, and the whole body is oxidized by sand blasting; and (3) power supply: working power supply: DC12V; power consumption: 65mA (Min.), 450mA (Type), 800mA (Max.).

The signal switching parameters are as follows: the signal channel is a 64-way SPST switch; the maximum switching time is less than or equal to 3ms; rated switching load is 3A@30VDC; the maximum switching voltage is 220VDC/250VAC; the maximum switching current is 3A@30VDC.

As shown in fig. 9 and 10, the XDQ0064 front panel in this embodiment is provided with a 64-way COM signal interface: 1 HDR78DB hub connector X3, DC-0625.5 X2.5 mm DC power socket, 1 HDR15DB hub connector CDI and RST switch. The RST switch is reset to factory settings as a hardware "module and restarted" switch. The XDQ0064 back panel is configured with an ethernet RJ45 interface jack, a 64-way signal interface: 2 HDR78DB female connectors X1 (NC normally closed), X2 (NO normally open).

As shown in fig. 11 and 12, the switching of 64 signals is realized by connecting 64 DPDT relays into SPST, and the switching principle is shown in fig. 12. The signal path is used for independently switching the relay, the NC end is connected with the COM end in normal state, UUT is connected with the real object signal, the NO end is connected with the COM end in relay action (suction) state, and UUT is switched to be connected with the simulation signal. The 64-path signal COM end is input/output to the XDQ0064 module through an HDB78 type connector (needle seat) X3, and NC and NO end signals are input/output to the XDQ0064 module through 2 HDB78 type connectors (hole seats) X1 and X2.

In the XDQ0064 of this embodiment, the ethernet communication in the XDQ0064 operates in UDPServer operation mode, in which the XDQ0064 does not verify the source IP address, and after each UDP packet is received, the destination IP is changed to the data source IP and port number, and when the data is recovered, the IP and port number of the last communication is sent. The module control and the 64-channel signal switching SPST switch control all adopt 13-byte instructions, and an upper computer (MCU) receives/transmits 13-byte instructions, and instruction IDs need to be distinguished.

The XDQ0064 module can drive 4 working state indicator lamps through CDI interface: 1) Power module Power-on indication-internal current limiting resistor is added to directly light the LED. 2) Run module running instruction-software blinks in the process of starting up self-checking, lights up when the upper computer Ethernet command monitoring is completed, and lights up by software at fixed time. 3) Link network IP connection indication-software monitors that the upper computer sends an Ethernet communication check instruction once every 5 seconds after starting-up self-checking is completed, and MCU software determines that the module is actually connected with the target IP after regularly receiving the instruction, so that the LINK lamp is lightened. 4) Act network data interaction indication-software is lightened when data interaction exists between USR-K7 serial ports RX and TX, and no interaction is extinguished.

The Ethernet protocol of the XDQ0064 module follows UDP communication protocol, 1) factory default setting is restored, upper computer software personnel can be implemented through XDQ0064 setting detection software, and can also be implemented through a command of 'module restoring factory setting and restarting' in the communication protocol; hardware personnel may implement through the XDQ0064 panel RST (CFG) button or the CFG pin signal of the CDI interface. When the hardware is implemented, the factory default setting can be restored after the RST (CFG) button is pressed or CFGSW signals are pulled down and the module is powered on under the condition that the XDQ0064 module is powered off and kept for 5 seconds. 2) Aiming at the XDQ0064 module, the network parameters IP and ports can be set and inquired by the upper computer running 'person networking K7 module setting software', the static IP of the module is required to be in the same network segment with the IP address of the upper computer, and the port number of the module takes the range of 0-65535. 3) When the XDQ0064 module and the network parameters are set, the user only sets the static IP and the local port number of the K7 network to serial port module (namely the XDQ0064 module). Port 1 mode UDPServer, subnet mask (hold default "255.255.255.0"), gateway (hold default "192.168.1.1") user does not change settings. 4) The serial parameters do not require user modification.

Example 3

As shown in fig. 13 to 16, embodiment 3 provides an XDQ64L6464 signal disconnection switching module, where the XDQ64L6464 signal disconnection switching module performs an operation of an internal relay of a remote control module through ethernet communication, so as to implement independent disconnection (on/off) and independent switching (switching between NC normally closed and NO normally open) of 64 signals, and provides a control means for remote program control disconnection/switching of signals for intensive automatic measurement and control, and has good applicability for various systems because the control means is controlled through ethernet communication.

The product specification parameters of the XDQ64L6464 path signal disconnection switching module described in this embodiment 3 are as follows: the external dimension is 195×197.7X35 mm (L×W×H), the width of the mounting lug is 227.7mm, and the whole body is oxidized by sand blasting; and (3) power supply: working power supply: DC12V; power consumption: 350mA (min.), 1000mA (Type), 2000mA (max.).

The signal switching parameters are as follows: signal channel: the 64 SPST disconnection switches are connected in series with the 64 SPST change-over switches; the maximum disconnection/switching time is less than or equal to 3ms; rated switching load is 3.0A@30VDC/1.0A@125VAC (40 ℃); the maximum disconnect/switch voltage is 220VDC/250VAC (40 ℃); the maximum switching current is 3A@30VDC; the maximum switching power is 125VA/90W.

As shown in fig. 13 and 14, the XDQ64L64 front panel in the present embodiment is provided with a 64-way COM signal interface: 1 HDR78DB hub connector X3, DC-0625.5 X2.5 mm DC power socket, 1 HDR15DB hub connector CDI and RST switch. The RST switch is reset to factory settings as a hardware "module and restarted" switch. The XDQ64L64 rear panel is configured with an Ethernet RJ45 interface jack, a 64-way signal interface: 2 HDR78DB female connectors X1 (NC normally closed), X2 (NO normally open).

As shown in fig. 15 and 16, the independent disconnection of 64 signals is realized by connecting 64 DPDT relays into SPST, and then the independent switching of signals is realized by connecting 64 DPDT relays into SPST. The signal flow disconnection and switching principle is shown in fig. 16. The 64-path signal COM end is input or output to the XDQ64L64 module through an HDB78 type connector (needle seat) X3, and NC and NO end signals are output or input to the XDQ64L64 module through 2 HDB78 type connectors (hole seats) X1 and X2.

In the XDQ64L64 of this embodiment, the ethernet protocol of the XDQ64L64 module follows the UDP communication protocol, and the ethernet communication is operated in UDPServer mode, in which the XDQ64L64 does not verify the source IP address, and after receiving a UDP packet, the destination IP is changed to the data source IP and the port number, and when the data is replied, the IP and the port number of the last communication are sent. The XDQ64L64 module controls, the 64-way signal disconnection SPST switch and the 64-way signal switching SPST switch are controlled by adopting 13-byte instructions, and an upper computer (MCU) and a lower computer (MCU) receive/send 13-byte instructions, so that instruction IDs are needed to be distinguished.

1) Restoring the default setting, the upper computer software personnel can be implemented through XDQ64L64 setting detection software, and can also be implemented through a module restoring factory setting and restarting instruction in a communication protocol; hardware personnel may implement through the XDQ64L64 panel RST (CFG) button or the CFG pin signal of the CDI interface. When the hardware is implemented, the default setting can be restored after the RST (CFG) button is pressed or the CFGSW signal is pulled down and the module is powered up under the condition that the XDQ64L64 module is powered down and kept for 5 seconds. 2) Aiming at the XDQ64L64 module, the network parameters IP and ports can be set and inquired by the upper computer running 'person networking K7 module setting software', the static IP of the module is required to be in the same network segment with the IP address of the upper computer, and the port number of the module takes the range of 0-65535. 3) The XDQ64L64 module is used for setting static IP, local port number, subnet mask and gateway only by a user when setting network parameters. The port 1 operation mode UDP Server and the like do not change the settings. 4) The serial parameters do not require user modification.

The XDQ64L64 module can drive 4 working state indicator lamps through a CDI interface: 1) Power module Power-on indication-internal current limiting resistor is added to directly light the LED. 2) Run module running instruction-software blinks in the process of starting up self-checking, lights up when the upper computer Ethernet command monitoring is completed, and lights up by software at fixed time. 3) Link network IP connection indication-software monitors that the upper computer sends an Ethernet communication check instruction once every 5 seconds after starting-up self-checking is completed, and MCU software determines that the module is actually connected with the target IP after regularly receiving the instruction, so that the LINK lamp is lightened. 4) Act network data interaction indication-software is lightened when data interaction exists between USR-K7 serial ports RX and TX, and no interaction is extinguished.

Example 4

As shown in fig. 17 to 20, embodiment 4 provides an XDQ 640064-path signal disconnection module, the XDQ 640064-path signal disconnection module is through ethernet communication, and a relay in the remote control module acts to realize independent disconnection (on/off) of 64-path signals, so that a control means for remotely controlling the disconnection and connection of signals in a program control manner is provided for intensive automatic measurement and control, and the control means has good applicability for various systems due to the control of the signal disconnection and connection by ethernet communication.

The product specification parameters of the XDQ 640064-way signal disconnection module described in this embodiment 4 are as follows: the external dimension is 186×197×35mm (L×W×H), the width of the mounting lug is 227mm, and the whole body is oxidized by sand blasting; and (3) power supply: working power supply: DC12V; power consumption: 150mA (min.), 500mA (Type), 1000mA (max.).

The signal switching parameters are as follows: the signal channel is a 64-way DPDT switch; the maximum disconnection time is less than or equal to 3ms; rated switching load is 3A@30VDC; the maximum disconnection voltage is 220VDC/250VAC; the maximum switching current is 3A@30VDC.

As shown in fig. 17 and 18, the XDQ 640064-way signal disconnection module front panel in the present embodiment is configured with 64-way COM signal interfaces: 1 HDR78DB hub connector X3, DC-0625.5 X2.5 mm DC power socket, 1 HDR15DB hub connector CDI and RST switch. The RST switch is reset to factory settings as a hardware "module and restarted" switch. The XDQ6400 back panel is configured with an ethernet RJ45 interface jack, a 64-way signal interface: 2 HDR78DB female connectors X1 (NC normally closed), X2 (NO normally open).

As shown in fig. 19 and 20, disconnection of 64 signals is realized by connecting 64 DPDT relays into SPST, and the disconnection principle is shown in fig. 20. The signal path is independently disconnected with the relay, the NC end is connected with the COM end in normal state, and the NO end is connected with the COM end when the relay acts (is attracted). The signal path is independently disconnected with the relay, the NC end is connected with the COM end in normal state, and the NO end is connected with the COM end when the relay acts (is attracted).

The XDQ 640064-way signal disconnection module of this embodiment, the ethernet protocol of the XDQ6400 module follows the UDP communication protocol, in the XDQ6400, the ethernet communication is operated in UDPServer operation mode, in which the XDQ6400 does not verify the source IP address, and after receiving a UDP packet, the destination IP is changed to the data source IP and the port number, and when the data is replied, the IP and the port number which are the most recently communicated are sent. The module management and control and 64-channel signal disconnection DPDT switch control all adopt 13 byte instructions, and an upper computer and a lower computer (MCU) receive/send 13 byte instructions, and instruction IDs need to be distinguished.

1) Restoring factory default setting, and implementing by upper computer software personnel through XDQ6400 setting detection software, or implementing through a module restoring factory setting and restarting instruction in a communication protocol; hardware personnel may be implemented through the XDQ6400 panel RST (CFG) button or the CFG pin signal of the CDI interface. When the hardware is implemented, the factory default setting can be restored after the RST (CFG) button is pressed or CFGSW signals are pulled down and the module is powered on under the condition that the XDQ6400 module is powered off and kept for 5 seconds.

2) Aiming at the XDQ6400 module, the network parameters IP and the port can be set and inquired by the upper computer running 'person networking K7 module setting software', the static IP of the module is required to be in the same network segment with the IP address of the upper computer, and the port number of the module takes the range of 0-65535.

3) When the network parameters are set, the static IP and the local port number of the K7 network to serial port module (namely the XDQ6400 module) are set only by a user. Port 1 mode UDPServer, subnet mask (hold default "255.255.255.0"), gateway (hold default "192.168.1.1") user does not change settings.

4) The serial parameters do not require user modification.

The XDQ6400 module can drive 4 working state indicator lamps through a CDI interface: 1) Power module Power-on indication-internal current limiting resistor is added to directly light the LED. 2) Run module running instruction-software blinks in the process of starting up self-checking, lights up when the upper computer Ethernet command monitoring is completed, and lights up by software at fixed time. 3) Link network IP connection indication-software monitors that the upper computer sends an Ethernet communication check instruction once every 5 seconds after starting-up self-checking is completed, and MCU software determines that the module is actually connected with the target IP after regularly receiving the instruction, so that the LINK lamp is lightened. 4) Act network data interaction indication-software is lightened when data interaction exists between USR-K7 serial ports RX and TX, and no interaction is extinguished.

Example 5

As shown in fig. 21 to 24, embodiment 5 provides an XDQ6432S32 channel two-way signal disconnection/switching module, where the XDQ6432S32 channel two-way signal disconnection/switching module controls the internal MCU to act on the relay contacts through ethernet communication, so as to realize disconnection and switching of 32 channels and 2 channels of signals (differential signals) per channel, thereby providing a solution for remote program control switching of signals for intensive automatic measurement and control, and having good applicability to various systems due to the control of ethernet communication.

The product specification parameters of the XDQ6432S32 channel two-way signal disconnection/switching module described in this embodiment 5 are as follows: 195×197.7× 35mm (L×W×H), 227mm wide with mounting tabs, and overall sandblasted black oxide; and (3) power supply: working power supply: DC12V; power consumption: 200mA (Min.), 800mA (Type), 1500mA (Max.).

The signal switching parameters are as follows: the signal channel is a 64-channel SPST switch connected in series with a 32-channel two-way DPDT switch; the maximum switching time is less than or equal to 3ms; rated switching load is 3.0A@30VDC/1.0A@125VAC (40 ℃); the maximum switching voltage is 220VDC/250VAC (40 ℃); the maximum switching current is 3.0A@30VAC; the maximum switching power is 125VA/90W. As shown in fig. 21 and 23, the XDQ6432S32 channel two-way signal disconnection/switching module front panel in the present embodiment is configured with 64-way COM signal interfaces: 1 HDR78DB type connector (hub) X3, DC-0625.5X

2.5Mm DC power socket, 1 HDR15DB hub connector CDI and RST switch. The RST switch is reset to factory settings as a hardware "module and restarted" switch. The XDQ6432S rear panel is configured with an ethernet RJ45 interface jack, a 32 channel two-way signal interface: 2 HDR78DB connectors (sockets) X1 (NC normally closed), X2 (NO normally open).

As shown in fig. 23 and 24, the disconnection of the 32-channel two-way (differential) signal is realized by 64 SPST relays, and then the synchronous switching of the two-way signal is realized by 32 DPDT relays, and the switching principle of a pair of differential signals is shown in fig. 24. The DPDT switching relay of differential signal, normally the relay NC end is connected with COM end-UUT and the interconnection of object signal, and relay NO end is connected with COM end-UUT switches to and interconnects with the simulation signal when the relay acts (is attracted). The 32-channel double-way differential signal COM end is input/output to the XDQ6432S module through an HDB78 type connector (needle seat) X3, and NC and NO end signals are input/output to the XDQ6432S module through 2 HDB78 type connectors (hole seats) X1 and X2.

The ethernet protocol of the XDQ6432S module in this embodiment follows the UDP communication protocol, and the ethernet communication of the XDQ6432S operates in UDPServer mode, in which the XDQ6432S does not verify the source IP address of the UDP packet, changes the destination IP into the source IP and the port number after receiving one UDP packet, and sends the IP and the port number of the last communication when replying to the data.

The XDQ6432S Ethernet communication data frame is divided into two instruction data frames of 9 bytes and 13 bytes long, and a 9-byte instruction is used for switching DPDT control of a 32-channel two-way signal; the 13 byte instruction is used for 32 channel two-way signal disconnect SPST control. The two instructions are distinguished by the instruction ID.

1) Restoring factory default settings: the upper computer software personnel can be implemented through the detection software of the XD32T02 signal disconnection/switching module, and can also be implemented through the instruction of the module recovery factory setting and restarting in a communication protocol; the hardware personnel may be implemented by an XDQ6432S front panel RST (CFG) button or CFGSW pin signal of a CDI interface. When the hardware is implemented, the factory default setting can be restored after the RST (CFG) button is pressed or CFGSW signals are pulled down and the module is powered on under the condition that the XDQ6432S module is powered off and kept for 5 seconds.

2) For the XDQ6432S module, the network parameters IP and ports can be set and inquired by the upper computer running 'person networking K7 module setting software', the static IP of the module is required to be in the same network segment with the IP address of the upper computer, and the port number of the module takes the range of 0-65535. .

3) When the network parameters of the XDQ6432S module are set, only the static IP and the local port number of the K7 network to serial port module (namely the XDQ64342S module) are set by a user. Port 1 mode UDPServer, subnet mask (hold default "255.255.255.0"), gateway (hold default "192.168.1.1") user does not change settings.

4) The serial parameters do not require user modification.

As shown in fig. 23, XDQ6432S32 channel two-way signal disconnect/switch module, 1) CFGSW (Reset): when the XDQ6432S module is powered off, the CFGSW signal is pulled down and the module is powered on, and after the power is kept for 5 seconds, the factory default setting can be restored. 2) 12 VDC-Power: the module is powered up, namely 12VDC is output, which indicates that the module is powered up normally. 3) Run (State): after the module is powered on, a high-low level pulse (LED is connected to flash) is output in the period of module initialization and self-checking, and a high level (LED is lighted) is output after 5 seconds are finished, so that the module is in a working state. 4) Link: the module is connected with the target IP to indicate a signal, the main control computer sends an Ethernet communication check command once every 5 seconds, and the module outputs a high level (connected with the LED to be lightened) at a Link pin after judging to be correct. 5) Act: and when the data interaction indication signal is used for network data interaction between the module and the main control computer, high-low level pulses (LED flashing) are output.

In summary, the system verification real object signal and simulation signal disconnection switching module in the embodiment of the utility model bundles the complicated and dispersed I/O signals to the signal adapting module or unit, and the measurement and control computer performs centralized and unified disconnection and switching control on the real object signal and simulation signal as required; the signal interface mode of three separation of the input signal of the public (COM) end, the output signal of the Normally Closed (NC) end and the output signal of the Normally Open (NO) end can effectively avoid the difficulty of wiring application and the electromagnetic interference of signals caused by signal mixing; the remote unified control of the signal adaptation module or the unit is realized by adopting the Ethernet, the Ethernet control circuit surrounds the alternative signal circuit and can be switched nearby at the signal end, so that the signal delay is eliminated, and the control synchronization is achieved. The signal adapting module or unit realizes the unified disconnection and switching control of all physical and simulation signals by the measurement and control computer through Ethernet control in the modularization construction of the system verification environment. Meanwhile, the signal adaptation module or unit of the utility model is used for bundling and distributing the prior complicated and scattered I/O signal lines, thereby reducing the complexity of the system verification environment and improving the reliability and maintainability of the system; and from the other dimension, when the large-scale system verification environment is built, the advantages of the Ethernet can be utilized to perform disconnection switching control on the signal in situ, the Ethernet control circuit surrounds the alternative signal circuit and can be switched nearby at the signal end, so that the signal time delay is eliminated, and the control synchronization is achieved.

The signal disconnection switching module can be provided with only the signal disconnection function, only the signal switching function or the signal disconnection switching function according to the actual requirement of the system verification environment, or the signal disconnection switching module has both functions.

The signal disconnection switching module can realize that the number of signal channels or signal paths for disconnection and switching is not limited by 32 channels or 64 channels according to the actual needs established by the system verification environment, and is only limited by the control occupation time and control delay in an Ethernet communication link to influence the synchronization of signals, namely the signal disconnection switching module can realize the expansion of the number of internal channels/paths according to the actual needs established by the system verification environment.

In the signal disconnection switching module, the signal flow disconnection switching control is not limited to the Single Pole Single Throw (SPST) relay to realize disconnection control, and the switching control is realized through the Double Pole Double Throw (DPDT) relay, so that a series of signal disconnection switching modules can be realized according to the actual requirement of system verification environment construction, and the Single Pole Single Throw (SPST) relay and the Double Pole Double Throw (DPDT) relay are adopted for collocation in disconnection and switching links according to the actual requirement, and even can be mixed and collocated in disconnection and switching links to meet the requirement of complex verification environment construction.

While the foregoing description of the embodiments of the present utility model has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the utility model, but rather, it should be understood that various changes and modifications could be made by one skilled in the art without the need for inventive faculty, which would fall within the scope of the utility model.

Claims (8)

1. The utility model provides a system verification is with practicality signal, emulation signal disconnection switching module which characterized in that includes: an Ethernet interface and a CDI display and control signal interface which are connected with the MCU microprocessor; the MCU microprocessor is also connected with a plurality of double-pole double-throw relay groups and a single-pole single-throw relay group; one end of the single-pole single-throw relay set is connected with one end of the double-pole double-throw relay set, and the other end of the single-pole single-throw relay set is connected with an X3 common signal interface; the other end of the double-pole double-throw relay group is connected with an NC end signal interface and an NO end signal interface.

2. The system verification object signal and simulation signal disconnection switching module according to claim 1, wherein in the single pole single throw relay group, disconnection of signal flow is realized by SPST relays, two paths of signals of each channel are disconnected by two SPST relays respectively, and the relays are driven to work by GPIOs of an MCU microprocessor through a driving circuit.

3. The system verification object signal and simulation signal disconnection switching module according to claim 1, wherein in the double-pole double-throw relay group, switching of signal flow is realized by actions from a middle arm of a DPDT relay to two normally closed and normally open ends, two paths of signals of each channel are switched by one DPDT relay, and the relay is driven to work by a GPIO of an MCU microprocessor through a driving circuit.

4. A system verification object signal and simulation signal disconnection switching module according to any one of claims 1 to 3, further comprising a dc power supply; after the external power supply is converted by the direct current power supply, the working power supply is provided for the internal circuit of the module.

5. A system verification object signal and simulation signal disconnection switching module according to any one of claims 1-3, wherein the ethernet interface is implemented by a serial port to ethernet module, and a TCP/IP protocol stack is integrated therein.

6. A system verification object signal and simulation signal disconnection switching module according to any one of claims 1-3, wherein the MCU microprocessor adopts an embedded ARM processor, and has a universal serial communication interface USART and a universal input/output interface with enough pins.

7. A system verification object signal and simulation signal disconnection switching module according to any one of claims 1 to 3, wherein a relay driving circuit is connected between the MCU microprocessor and the double-pole double-throw relay group and between the MCU microprocessor and the single-pole single-throw relay group.

8. The system verification object signal and simulation signal disconnection switching module according to claim 7, wherein a darlington transistor matrix driving relay with a transient mimicking clamp diode is adopted, wherein the clamp diode also serves as a relay freewheel diode, and the driving tube is protected from breakdown by a coil back electromotive force.