CN210626977U - Analog signal acquisition tandem controller - Google Patents
Analog signal acquisition tandem controller Download PDFInfo
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- CN210626977U CN210626977U CN201922111162.3U CN201922111162U CN210626977U CN 210626977 U CN210626977 U CN 210626977U CN 201922111162 U CN201922111162 U CN 201922111162U CN 210626977 U CN210626977 U CN 210626977U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses an analog signal acquisition tandem controller, which comprises a shell, wherein a plurality of indicating lamps for displaying the running state, a plurality of nixie tubes for displaying parameters and a plurality of keys for setting parameters are arranged on a control panel of the shell; the upper part of the shell is provided with a CAN interface, and the shell is also provided with an analog signal interface; the analog signal interface is accessed to the analog signal of the external sensor and carries out acquisition and storage; the plurality of analog signal acquisition tandem controllers are cascaded through CAN interfaces. The utility model discloses can gather the tandem to the signal of multiple type external sensor and signal source input, can also cascade between the controller, consequently have the commonality strong, the tandem is in large quantity, is favorable to the advantage that centralized control handled.
Description
Technical Field
The utility model relates to an industrial signal gathers the field, especially relates to an analog signal gathers tandem controller.
Background
Industrial signals from a plurality of sensors and devices in an industrial system need to be converged together for integrated monitoring, but the types of the industrial signals are more, and the types of interfaces of the sensors or the devices are also more, including a two-wire system, a three-wire system and a four-wire system, and a unified controller which can be compatible with the interfaces and the signals at the same time is lacked in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides an analog signal gathers tandem controller, solves among the prior art to lack the problem of unified tandem integrated controller to multiple industrial signal.
In order to solve the above technical problem, one technical solution adopted by the present invention is to provide an analog signal acquisition tandem controller, which comprises a housing, wherein a control panel of the housing is provided with a plurality of indicator lamps for displaying an operating state, a plurality of nixie tubes for displaying parameters, and a plurality of keys for adjusting parameters;
the upper part of the shell is provided with a CAN interface, and the lower part of the shell is provided with a power interface for supplying power to the analog signal acquisition tandem controller, and a 485 interface and a 232 interface for communication; the shell is also provided with an analog signal interface; the analog signal interface is accessed to the analog signal of the external sensor and used for collecting and storing; the plurality of analog signal acquisition tandem controllers are cascaded through CAN interfaces.
Preferably, the analog signal interface has two terminals: the positive signal terminal and the negative signal terminal can be respectively connected with a two-wire sensor, a three-wire sensor or a four-wire sensor; and a plurality of groups of analog signal interfaces are arranged on the shell, and each group of analog signal interfaces are mutually independent.
Preferably, when the analog signal interface is connected with the two-wire sensor, a positive signal output end of the two-wire sensor is connected with a power supply, a negative signal output end is connected with a positive signal wiring end of the analog signal interface as an analog signal output end, and a negative signal wiring end of the analog signal interface is grounded.
Preferably, when the analog signal interface is connected to the three-wire sensor, a power supply end of the three-wire sensor is connected to a power supply, a ground end of the three-wire sensor is grounded, a signal output end serving as the analog signal output end is connected to a positive signal terminal of the analog signal interface, and a negative signal terminal of the analog signal interface is grounded.
Preferably, when the analog signal interface is connected to the four-wire sensor, the power supply end of the four-wire sensor is connected to the power supply, the ground end is grounded, the positive signal output end is connected to the positive signal terminal of the analog signal interface as the analog signal output end, the negative signal output end is connected to the negative signal terminal of the analog signal interface, and the negative signal output end is grounded.
Preferably, the number of the analog signal acquisition tandem controllers cascaded through the CAN interface is six, wherein one analog signal acquisition tandem controller is used as a master station, and the other five analog signal acquisition tandem controllers are used as slave stations; when signals are collected, the signals collected by the slave stations are input into the master station, and the analog signal collection tandem controller serving as the master station transmits all collected signals to the external controller through the 485 interface.
Preferably, the analog signal acquisition tandem controller is cascaded in a bus mode through a CAN interface when being cascaded for use.
Preferably, the keys comprise a setting key, a left adjusting key, a right adjusting key, a determining key and a baud rate key.
Preferably, the indicator light comprises a power indicator light, a work indicator light and a CAN communication indicator light.
The utility model has the advantages that: the utility model discloses an analog signal acquisition tandem controller, which comprises a shell, wherein a plurality of indicating lamps for displaying the running state, a plurality of nixie tubes for displaying parameters and a plurality of keys for setting parameters are arranged on a control panel of the shell; the upper part of the shell is provided with a CAN interface, and the shell is also provided with an analog signal interface; the analog signal interface is accessed to the analog signal of the external sensor and carries out acquisition and storage; the plurality of analog signal acquisition tandem controllers are cascaded through CAN interfaces. The utility model discloses can gather the tandem to the signal of multiple type external sensor and signal source input, can also cascade between the controller, consequently have the commonality strong, the tandem is in large quantity, is favorable to the advantage that centralized control handled.
Drawings
Fig. 1 is a schematic diagram of a control panel of an analog signal acquisition tandem controller according to the present invention;
fig. 2 is a schematic diagram of an analog signal interface connection two-wire sensor in the analog signal acquisition tandem controller according to the present invention;
fig. 3 is a schematic diagram of an analog signal interface connection three-wire sensor in the analog signal acquisition tandem controller according to the present invention;
fig. 4 is a schematic diagram of an analog signal interface connection four-wire sensor in the analog signal acquisition tandem controller according to the present invention;
fig. 5 is a single chip microcomputer in the analog signal acquisition tandem controller according to the present invention;
fig. 6 is a power circuit in an analog signal acquisition tandem controller according to the present invention;
fig. 7 is a TM1638 chip of a display circuit in an analog signal acquisition tandem controller according to the present invention;
fig. 8 is a first nixie tube of a display circuit in the analog signal acquisition tandem controller according to the present invention;
fig. 9 is a schematic diagram of a cascade of a plurality of analog signal acquisition tandem controllers according to the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It is to be noted that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, the analog signal acquisition tandem controller includes a casing K, a control panel Z1 of the casing K is provided with a plurality of indicator lamps S1 for displaying operating status, a plurality of nixie tubes S2 for displaying parameters, and a plurality of keys a for adjusting parameters;
the upper part of the shell K is provided with a CAN interface J1, and the lower part of the shell K is provided with a power interface J2 for supplying power to the analog signal acquisition junction controller and 485 interfaces J3 and 232 interface J4 for communication; an analog signal interface (J5 and J6 in the figure) is also arranged on the shell K; the analog signal interface is accessed to the analog signal of the external sensor and carries out acquisition and storage, and a plurality of analog signal acquisition tandem controllers are cascaded through the CAN interface.
A control circuit is arranged in the shell and monitors the nixie tube, the indicator light, the key and the interface. On the control panel Z1, the power indicator PWR: the controller is powered on, and the power supply is normal; work indicator RUN: indicating that the controller is working normally; CAN communication indicator lamp CAN: the CAN communication is normal, if the CAN communication is not connected to the CAN bus, the CAN indicator light is not on.
The key A comprises a setting key, a left adjusting key, a right adjusting key, a determining key and a baud rate key. Pressing the setting button can set up the menu, can switch over in proper order according to setting the button: 485 address setting menu-CAN address setting menu-baud rate setting-exit setting menu. And pressing a setting key to enter a 485 address setting menu, adjusting the address through a left adjusting key and a right adjusting key, and pressing a confirming key to confirm storage.
The baud rate key can set the baud rate, and the baud rate can be switched in sequence according to the baud rate key: 4800-9600-19200-115200.
The power interface J2 includes two terminals, a 0V terminal and a 24V terminal, and the 24V terminal is connected to a 24V power supply. The 485 interface J3 comprises two wiring ends, A +: sending end, B-: and (4) receiving the data. The 232 interface J4 includes three terminals, TX: receiving terminal, GND: and a ground terminal.
Further, in fig. 1, the analog signal interface has two terminals: the positive signal terminal and the negative signal terminal (such as IN1+, IN1-) can be respectively connected with a two-wire sensor, a three-wire sensor or a four-wire sensor; and a plurality of groups of analog signal interfaces are arranged on the shell, namely J5 and J6 in FIG. 1 respectively represent two groups of analog signal interfaces, each group of analog signal interfaces are independent from each other, and in FIG. 1, 8 analog signal interfaces are provided in total.
Preferably, as shown IN fig. 2, when the analog signal interface (illustrated by the third analog interface signal IN3+, IN 3-IN fig. 2) is connected to the two-wire sensor, the positive signal output terminal of the two-wire sensor is connected to the power supply 24V (power output terminal L + of the 24V power supply), the negative signal output terminal is connected to the positive signal terminal IN3+ of the analog signal interface as the analog signal output terminal, and the negative signal terminal IN 3-ground line M of the analog signal interface. It can be seen that the 24V power supply also supplies power to the power interface.
Preferably, when the analog signal interface (illustrated by the second analog interface signals IN2+, IN 2-IN fig. 3) is connected to the three-wire sensor, the power supply terminal of the three-wire sensor is connected to +24V, the ground terminal is connected to the ground line M, the signal output terminal out is connected as the analog signal output terminal to the positive signal terminal IN2+ of the analog signal interface, and the negative signal terminal IN 2-the ground line M of the analog signal interface.
Preferably, as shown IN fig. 4, when the analog signal interface (illustrated by the first analog interface signals IN1+, IN 1-IN fig. 4) is connected to the four-wire sensor, the power supply terminal of the four-wire sensor is connected to the power supply +24V, the ground terminal is connected to the ground line M, the positive signal output terminal is connected to the positive signal terminal IN1+ of the analog signal interface as the analog signal output terminal, the negative signal output terminal is connected to the negative signal terminal IN1-, and the negative signal output terminal is connected to the ground line M.
As can be seen from fig. 2 to 4, the analog signal interface may be connected to a two-wire sensor, a three-wire sensor, or a four-wire sensor. Each group of analog signal interfaces can be connected with the same analog signal sensor and can also be connected with different analog signal sensors, so that the universality of the whole signal acquisition and collection controller is stronger.
As shown IN fig. 5, the single chip IN the signal collection and collection controller is a chip STM32F103C8T6, a power supply terminal Vdd of the chip STM32F103C8T6 is electrically connected to +3.3V, a Vss terminal is grounded, crystal oscillator pins OSC _ OUT and OSC _ IN of the chip STM32F103C8T6 are grounded after being connected to a crystal oscillator, and a pin BOOT of the chip STM32F103C8T6 is electrically connected to a resistor R61 and then grounded.
As shown in fig. 6, the power circuit inside the signal collection and collection controller casing includes a chip LM2596, and an input terminal Vin of the chip LM2596 is connected to +24V dc voltage. The output terminal Vout of the chip LM2596 outputs +5V voltage. The output terminal Vout is further connected to a cathode of a schottky diode D1, an anode of the schottky diode D1 is grounded, and the output terminal Vout is further connected to an inductor L7, the other end of the inductor L7 is connected to an anode of the first polarity capacitor C27, and a cathode of the first polarity capacitor C27 is grounded. The output end Vout is also electrically connected with the feedback end FBack of the chip LM2596, the switch end on/off of the chip LM2596 is grounded, and the ground ends of the chip LM2596 are grounded. Preferably, the positive electrode of the first polarity capacitor C27 is connected to the capacitors C25, C28 and C26, respectively, and then grounded.
Furthermore, the other end of the inductor L7 is connected to a power supply input end of the chip AMS1117-3.3, and a power supply output end of the chip AMS1117-3.3 outputs +3.3V voltage. The ground terminal of the chip AMS1117-3.3 is grounded. Preferably, the power supply output end of the chip AMS1117-3.3 is electrically connected with the capacitor C21 and the capacitor C22 respectively and then grounded. It can be seen that the power supply circuit converts a +24V dc power supply to a +5V voltage and a +3.3V voltage.
As shown in fig. 7, the control circuit further includes a display circuit for displaying the analog signal or the set parameter value, and the display circuit includes a chip TM1638 for driving the nixie tube. The chip selection terminal STB of the chip TM1638 is connected with the chip selection terminal STB1 of the chip STM32F103C8T6 in FIG. 5, and is also connected with the chip selection current-limiting resistor R8 and then connected with the +3.3V voltage, the clock terminal CLK is electrically connected with the clock signal output terminal of the chip STM32F103C8T6 and is also connected with the pull-up resistor R10 and then connected with the +3.3V voltage, the data terminal DIO is connected with an input/output terminal of the chip STM32F103C8T6 and is also electrically connected with the pull-up resistor R11 and then connected with the +3.3V voltage. The power supply end is electrically connected with +5V voltage, the anode of the polar capacitor C2 and the cathode of the polar capacitor C2 are grounded, and the power supply end is preferably also electrically connected with the anode of the polar capacitor C1 and the cathode of the polar capacitor C1 are grounded.
As shown in fig. 8, the nixie tube includes a first nixie tube and a second nixie tube, and in this embodiment, the first nixie tube shown in fig. 8 is taken as an example for description. The first nixie tube and the second nixie tube are 3-bit common-anode nixie tubes, wherein the common anode of each nixie tube is respectively connected with one output bit of the chip TM1638 in fig. 6, namely the common anode (A-DP) of each nixie tube is respectively connected with the output bits (GR1-GR8) of the chip TM1638 in a one-to-one correspondence manner.
In FIG. 8, the three bit-selective segments (DIG1-DIG3) of the first nixie tube are correspondingly connected to the first output segment to the third output segment (SEG1/K1-SEG3/K3) of the chip TM1638 in FIG. 7, and the three bit-selective segments (DIG1-DIG3) of the second nixie tube are correspondingly connected to the fourth output segment to the sixth output segment (SEG4/K4-SEG6/K6) of the chip TM 1638. The ground terminal of the chip TM1638 is grounded.
As shown in fig. 9, six analog signal acquisition tandem controllers are cascaded through CAN interfaces, where the CAN address of one analog signal acquisition tandem controller (1#) is used as a master station, and the CAN addresses of the other five analog signal acquisition tandem controllers (2# -6 #) are used as slave stations; when signals are collected, the signals collected by the slave stations are input into the master station (1#), and the analog signal collection junction controller (1#) with the master station transmits all collected signals to the external controller PLC through the 485 interface.
Preferably, each analog signal acquisition tandem controller has a corresponding register in the CAN interface, and when 6 such analog signal acquisition tandem controllers are connected in a bus manner through the CAN interfaces, the registers are addressed in a unified manner, as shown in table 1. For example, addresses 0000 to 0007 correspond to the analog signals obtained by the eight analog signal collection junction controllers of the master station No. 1, and addresses CH1 to CH8 correspond to the signal channels representing the eight analog signal collection junction controllers. The analog signals are stored in the memories corresponding to the addresses, and the external controller communicates with the master station through 485 to acquire the AD values of all the channels.
TABLE 1 memory Allocation Table corresponding to CAN interface
Therefore, the utility model discloses an analog signal acquisition tandem controller, which comprises a shell, wherein a plurality of indicator lamps for displaying the running state, a plurality of nixie tubes for displaying the parameters and a plurality of keys for setting the parameters are arranged on a control panel of the shell; the upper part of the shell is provided with a CAN interface, and the shell is also provided with an analog signal interface; the analog signal interface is accessed to the analog signal of the external sensor and carries out acquisition and storage; the plurality of analog signal acquisition tandem controllers are cascaded through CAN interfaces. The utility model discloses can gather the tandem to the signal of multiple type external sensor and signal source input, can also cascade between the controller, consequently have the commonality strong, the tandem is in large quantity, is favorable to the advantage that centralized control handled.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the same principle as the present invention.
Claims (8)
1. The utility model provides an analog signal gathers tandem controller, includes the casing, its characterized in that: a control panel of the shell is provided with a plurality of indicator lamps for displaying the running state, a plurality of nixie tubes for displaying parameters and a plurality of keys for adjusting the parameters;
the upper part of the shell is provided with a CAN interface, and the lower part of the shell is provided with a power interface for supplying power to the analog signal acquisition tandem controller, and a 485 interface and a 232 interface for communication; the shell is also provided with an analog signal interface; the analog signal interface is accessed to the analog signal of the external sensor and used for collecting and storing; the plurality of analog signal acquisition tandem controllers are cascaded through a CAN interface; the analog signal interface has two terminals: the positive signal terminal and the negative signal terminal can be respectively connected with a two-wire sensor, a three-wire sensor or a four-wire sensor; and a plurality of groups of analog signal interfaces are arranged on the shell, and each group of analog signal interfaces are mutually independent.
2. The analog signal acquisition tandem controller according to claim 1, wherein: when the analog signal interface is connected with the two-wire sensor, the positive signal output end of the two-wire sensor is connected with a power supply, the negative signal output end is connected with the positive signal wiring end of the analog signal interface as the analog signal output end, and the negative signal wiring end of the analog signal interface is grounded.
3. The analog signal acquisition tandem controller according to claim 1, wherein: when the analog signal interface is connected with the three-wire sensor, the power supply end of the three-wire sensor is connected with a power supply, the grounding end of the three-wire sensor is grounded, the signal output end is used as the analog signal output end to be connected with the positive signal wiring end of the analog signal interface, and the negative signal wiring end of the analog signal interface is grounded.
4. The analog signal acquisition tandem controller according to claim 1, wherein: when the analog signal interface is connected with the four-wire sensor, the power end of the four-wire sensor is connected with a power supply, the grounding end is grounded, the positive signal output end is connected with the positive signal wiring end of the analog signal interface as the analog signal output end, the negative signal output end is connected with the negative signal wiring end of the analog signal interface, and the negative signal output end is grounded.
5. The analog signal acquisition tandem controller according to any one of claims 1-4, wherein: six analog signal acquisition tandem controllers are cascaded through the CAN interface, wherein one analog signal acquisition tandem controller serves as a master station, and the other five analog signal acquisition tandem controllers serve as slave stations; when signals are collected, the signals collected by the slave stations are input into the master station, and the analog signal collection tandem controller serving as the master station transmits all collected signals to the external controller through the 485 interface.
6. The analog signal acquisition tandem controller according to claim 5, wherein: when the analog signal acquisition tandem controller is used in a cascade mode, the analog signal acquisition tandem controller is cascaded in a bus mode through a CAN interface.
7. The analog signal acquisition tandem controller according to claim 1, wherein: the keys comprise a setting key, a left adjusting key, a right adjusting key, a determining key and a baud rate key.
8. The analog signal acquisition tandem controller according to claim 1, wherein: the indicating lamp comprises a power supply indicating lamp, a working indicating lamp and a CAN communication indicating lamp.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922111162.3U CN210626977U (en) | 2019-11-30 | 2019-11-30 | Analog signal acquisition tandem controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922111162.3U CN210626977U (en) | 2019-11-30 | 2019-11-30 | Analog signal acquisition tandem controller |
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| CN210626977U true CN210626977U (en) | 2020-05-26 |
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