CN210051853U

CN210051853U - Centralized meter reading device

Info

Publication number: CN210051853U
Application number: CN201920204859.2U
Authority: CN
Inventors: 李雷波
Original assignee: Ningbo Ammete Instrument Technology Co Ltd
Current assignee: Ningbo Ammete Instrument Technology Co Ltd
Priority date: 2019-02-16
Filing date: 2019-02-16
Publication date: 2020-02-11
Anticipated expiration: 2029-02-16

Abstract

The utility model relates to a concentrate meter-reading device, which comprises a housin, control circuit board includes power supply circuit, CPU central processing unit, still set up the detection device who detects the control circuit board circular telegram condition in the casing, detection device includes voltage conversion equipment, a control device, filter equipment and flash of light suggestion device, voltage conversion equipment is external to have switching device, switching device is coupled in the commercial power and receives mains voltage and output switch signal, voltage conversion equipment receives switch signal and output voltage conversion signal, control circuit board receives voltage conversion signal and is responded to voltage conversion signal and works with control CPU central processing unit, control device receives voltage conversion signal and output control signal, flash of light suggestion device receives control signal and carries out flash of light suggestion. The utility model discloses can carry out the circular telegram to the inside control circuit board in the meter reading ware installation and detect, guarantee control circuit board's normal use to make normal work after the meter reading ware installation.

Description

Centralized meter reading device

Technical Field

The utility model belongs to the technical field of the technique of meter-copy device and specifically relates to a concentrate meter-copy device is related to.

Background

The remote meter reading system is designed for realizing real-time and reliable remote reading of data of three meters (electric meters, water meters and gas meters), and a centralized meter reader in the system is one of core components and has the functions of data acquisition, storage, processing, forwarding and the like.

The existing centralized meter reading device mainly comprises a shell and a control circuit board arranged in the shell, wherein the control circuit board comprises a power supply circuit and a CPU (central processing unit), the CPU is connected with a communication interface, a 3G module, a MODEM module, an INTERNET communication module, a far infrared wireless communication module, an RF (radio frequency) wireless communication module and an MBUS (bus bar) conversion module, and the data acquisition, storage, processing and forwarding functions are realized under the combined action of the modules, so that the centralized meter reading device after being installed is important to keep normal power-on work in the operation process of the whole meter reading system, the centralized meter reading device needs to work normally, the internal control circuit board needs to be ensured to be powered on normally, in the prior art, when the centralized meter reading device is installed, the power-on detection of the centralized meter reading device is often ignored, and the centralized meter reading device can not be used normally after being installed, there is a need for improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a concentrate meter reading device, when carrying out the installation of meter reading device, can carry out the circular telegram to the control circuit board of inside and detect, guarantee control circuit board's normal use to can normally work after making the installation of meter reading device.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a centralized meter reader comprises a shell and a control circuit board arranged in the shell, wherein the control circuit board comprises a power supply circuit and a CPU, the CPU is connected with a communication interface, a 3G module, a MODEM module, an INTERNET communication module, a far infrared wireless communication module, an RF wireless communication module and an MBUS conversion module, a detection device for detecting the power-on condition of the control circuit board is also arranged in the shell, the detection device comprises a voltage conversion device, a control device, a filter device and a flash prompting device, the voltage conversion device is externally connected with a switch device, the switch device is coupled with a mains supply to receive mains supply voltage and output a switch signal, the voltage conversion device is coupled with the switch device to receive the switch signal and output a voltage conversion signal, the control circuit board is coupled with the voltage conversion device to receive the voltage conversion signal and responds to the voltage conversion signal to control the CPU to work, the control device is coupled to the voltage conversion device to receive the voltage conversion signal and output a control signal, the filter device is coupled to the control device to receive the control signal and filter the signal, and the flash prompt device is coupled to the filter device to receive the filtered control signal and prompt in a flash manner; and only when the flash prompting device emits light after the switch device is switched on, the control circuit board is normally electrified, and the CPU can normally work.

By adopting the technical scheme, when the meter reading device is installed, the external switch device is closed, the voltage conversion device and the control device work, the voltage conversion device is used for converting mains supply voltage into normal voltage suitable for the control device and the control chip to work, the control device works to output a control signal to the flash prompting device, the flash prompting device is touched to give out light for prompting, the power-on condition of the control circuit board can be indicated to be normal, the meter reading device can work normally, and otherwise, when the switch device is closed, the flash prompting device does not give out light, the control circuit board is not powered on normally.

Preferably, the voltage conversion device includes a transformer T, a first rectifier diode and a second rectifier diode, one end of a primary side of the transformer T is coupled to the commercial power, the other end of the primary side of the transformer T is coupled to the switching device, one end of a secondary side of the transformer T is coupled to an anode end of the first rectifier diode, the other end of the secondary side of the transformer T is coupled to an anode end of the second rectifier diode, cathode ends of the first rectifier diode and the second rectifier diode are coupled to one end of the control circuit board, and a middle end of the secondary side of the transformer T and the other end of the control circuit board are coupled to the control device.

Through adopting above-mentioned technical scheme, turn into the normal voltage that is fit for control circuit board work through setting up the transformer with the time of high voltage earlier, two rectifier diodes of rethread turn into the direct current with the alternating current, and the practicality is strong.

Preferably, the control device includes a detection circuit coupled to the voltage conversion device to receive the voltage conversion signal and output a detection signal, and a start circuit coupled to the detection circuit to receive the detection signal and output a control signal.

By adopting the technical scheme, the detection circuit receives the voltage conversion signal for judgment and outputs a detection signal for triggering the starting circuit to work.

Preferably, the detection circuit includes an optocoupler a and a resistor R1, a cathode terminal of a diode in the optocoupler a is coupled to the voltage conversion device, an anode terminal of the diode is coupled to the control circuit board, an emitter of a photo-transistor in the optocoupler a is grounded through a resistor R1, and a collector of the photo-transistor in the optocoupler a is coupled to the start-up circuit and outputs the detection signal.

By adopting the technical scheme, the optical coupler A is arranged to detect whether the control circuit board is electrified or not, and the control device is triggered to control the flash prompting device to flash and remind when the control circuit board is electrified.

Preferably, the flash prompting device includes a flash circuit coupled to the filtering device to receive the filtered control signal and output a flash signal, and a light emitting diode coupled to the flash circuit to receive the flash signal and perform a flash prompt in response to the flash signal.

Through adopting above-mentioned technical scheme, through setting up the flashing circuit in order to output flashing signal to emitting diode for emitting diode carries out the scintillation suggestion, so that reinforcing emitting diode's suggestion effect.

Preferably, the flash circuit includes a filter circuit, resistors R3, R5, R6, a capacitor C1, and a comparator a2, wherein one ends of the resistors R3 and R5 are coupled to the collector of the transistor Q1, one end of the resistor R3 is coupled to one end of the capacitor C1, the other end of the capacitor C1 is coupled to the filter circuit, the other end of the capacitor C1 and the other end of the resistor R5 are coupled to the same phase end of the comparator a2, the inverting end of the comparator a2 is grounded through the resistor R6, and the output end of the comparator a2 is coupled to the light emitting diode.

By adopting the technical scheme, the flash circuit outputs discontinuous signals, namely flash signals after receiving the control signals and after the control signals are transmitted internally, so that the light-emitting diode is in a discontinuous working state, and further, a corresponding flash effect can be generated.

Preferably, the flash prompting device further comprises a signal amplifying circuit coupled between the flash circuit and the light emitting diode.

By adopting the technical scheme, the received flash signal is amplified by arranging the signal amplification circuit, so that the light-emitting diode is triggered to work quickly.

Preferably, the light emitting diode comprises a fixed part arranged on the outer side wall of the shell, and a flashing part connected to the end part of the fixed part and protruding out of the outer side wall of the shell, and a connecting hole clamped with the fixed part is formed in the outer side wall of the shell corresponding to the position of the fixed part.

Through adopting above-mentioned technical scheme, emitting diode is at the course of the work for emitting diode is in discontinuous work because of the relation that adds the flashing circuit, makes emitting diode appear damaging easily, through setting up the connecting hole with the fixed part joint, so that emitting diode can dismantle and connect on the casing, so that change emitting diode.

Preferably, the hole wall of the connecting hole is provided with a fastening groove along the circumferential direction, and the outer side wall of the fixing part is provided with a soft fastening ring clamped with the fastening groove.

Through adopting above-mentioned technical scheme, through setting up the fastening groove and the soft fastening block of mutual joint to improve the connection steadiness between emitting diode and the connecting hole.

To sum up, the utility model discloses a beneficial technological effect does:

through setting up voltage conversion equipment, controlling means, flash of light suggestion device and external switching device, can carry out the circular telegram to the internal control circuit board of meter-copy ware installation in-process and detect, guarantee the normal use of control circuit board to make normal work after the installation of meter-copy ware.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a circuit structure diagram of the detecting device of the present invention.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 1.

In the figure, 1, a housing; 11. a control circuit board; 12. connecting holes; 121. a fastening groove; 2. a detection device; 3. a voltage conversion device; 31. a first rectifying diode; 32. a second rectifying diode; 4. a control device; 41. a detection circuit; 42. a start-up circuit; 5. a filtering device; 6. a flash light prompting device; 61. a flash circuit; 611. a filter circuit; 62. a light emitting diode; 621. a fixed part; 622. a flicker section; 63. a signal amplification circuit; 7. a switching device; 8. a flexible fastening ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a centralized meter reading device, including casing 1, set up the control circuit board 11 in casing 1, control circuit board 11 includes power supply circuit, CPU central processing unit, and CPU central processing unit is connected with communication interface, 3G module, MODEM module, INTERNET communication module, far infrared wireless communication module, RF wireless communication module, MBUS conversion module.

Referring to fig. 1 and 2, a detection device 2 for detecting the power-on condition of the control circuit board 11 is further disposed in the housing 1, the detection device 2 includes a voltage conversion device 3, a control device 4, a filter device 5 and a flash prompt device 6, the voltage conversion device 3 is externally connected with a switch device 7, the switch device 7 includes a switch S, one end of the switch S is coupled to the mains supply to receive the mains supply voltage and output a switch signal, and the other end of the switch S is coupled to the voltage conversion device 3.

The voltage conversion device 3 is coupled to the switch device 7 to receive the switching signal and output a voltage conversion signal, the voltage conversion device 3 includes a transformer T, a first rectifying diode 31 and a second rectifying diode 32, one end of a primary side of the transformer T is coupled to the utility power, the other end of the primary side is coupled to the switch device 7, one end of a secondary side of the transformer T is coupled to an anode terminal of the first rectifying diode 31, the other end of the secondary side is coupled to an anode terminal of the second rectifying diode 32, cathode terminals of the first rectifying diode 31 and the second rectifying diode 32 are coupled to one end of the control circuit board 11, and a middle terminal of the secondary side of the transformer T and the other end of the control circuit board 11 are coupled to the control device 4.

The control device 4 is coupled to the voltage conversion device 3 for receiving the voltage conversion signal and outputting a control signal, the control device 4 includes a detection circuit 41 and a start circuit 42, the detection circuit 41 is coupled to the voltage conversion device 3 for receiving the voltage conversion signal and outputting a detection signal, and the start circuit 42 is coupled to the detection circuit 41 for receiving the detection signal and outputting a control signal to the filter device 5.

The detection circuit 41 comprises an optical coupler A and a resistor R1, and the starting circuit 42 comprises a relay K and a normally open contact K-1 controlled by the relay K; the type of the optical coupler 511 is preferably EL0500, a cathode terminal of a diode in the optical coupler a is coupled to a middle terminal of a secondary line of the transformer T, an anode terminal of the diode is coupled to the control circuit board 11, an emitter of a photo transistor in the optical coupler a is grounded through a resistor R1, a collector is coupled to one end of a relay K and outputs a detection signal, the other end of the relay K is coupled to Vcc voltage, one end of a normally open contact K-1 is coupled to the filter 5 and outputs a control signal, and the other end is coupled to Vcc voltage.

The filtering device 5 is coupled to the control device 4 to receive the control signal and filter the control signal to remove an interference signal in the control signal, the filtering device 5 includes a resistor R2 and a capacitor C3 that are connected in parallel, one end of the resistor R2 and one end of the capacitor C3 are both coupled to one end of the normally open contact K-1, the other end of the resistor R2 is coupled to the flash prompting device 6, and the other end of the capacitor C3 is grounded.

The flash prompting device 6 is coupled to the filtering device 5 for receiving the filtered control signal and performing flash prompting, the flash prompting device 6 includes a flash circuit 61, a signal amplifying circuit 63, and a light emitting diode 62, the flash circuit 61 is coupled to the filtering device 5 for receiving the filtered control signal and outputting a flash signal, the signal amplifying circuit 63 is coupled to the flash circuit 61 for receiving the flash signal and performing signal amplification, and the light emitting diode 62 is coupled to the signal amplifying circuit 63 for receiving the amplified flash signal and performing flash prompting in response to the flash signal.

The flash circuit 61 includes a filter circuit 611, resistors R3, R5, R6, a capacitor C1 and a comparator a1, wherein one ends of the resistors R3 and R5 are coupled to the resistor R2, one end of the resistor R3 is coupled to one end of the capacitor C1, the other end of the capacitor C1 is coupled to the filter circuit 611, the other end of the capacitor C1 and the other end of the resistor R5 are coupled to the same phase end of the comparator a1, the inverting end of the comparator a1 is grounded through the resistor R6, and the output end of the comparator a1 is coupled to the signal amplification circuit 63; the filter circuit 611 includes a resistor R4 and a capacitor C2 connected in parallel, one end of the resistor R4 and one end of the capacitor C2 are both coupled to the non-inverting terminal of the comparator a1, and the other end of the resistor R4 and the other end of the capacitor C2 are both grounded.

The signal amplifying circuit 63 includes an amplifier IC1, resistors R7 and R8, the type of the signal amplifier IC1 is preferably LM358, the in-phase terminal of the signal amplifier IC1 is coupled to the output terminal of the comparator a1, the inverting terminal is coupled to one terminal of the resistor R7, the other terminal of the resistor R7 is grounded, the resistor R3 is connected in series between the inverting terminal and the output terminal of the signal amplifier IC1, the output terminal of the signal amplifier IC1 is coupled to the anode terminal of the light emitting diode 62, and the cathode terminal of the light emitting diode 62 is grounded.

Referring to fig. 1 and 3, the light emitting diode 62 includes a fixing portion 621 disposed on an outer sidewall of the housing 1, and a flashing portion 622 connected to the fixing portion 621, the flashing portion 622 protruding out of the outer sidewall of the housing 1, and a connecting hole 12 clamped with the fixing portion 621 is disposed on the outer sidewall of the housing 1 corresponding to the fixing portion 621; fastening grooves 121 are formed in the hole wall of the connecting hole 12 in the circumferential direction, a soft fastening ring 8 clamped with the fastening grooves 121 is arranged on the outer side wall of the fixing portion 621 corresponding to the fastening grooves 121 in the circumferential direction, and the soft fastening ring 8 is made of rubber materials.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a concentrate meter reader, include casing (1), set up in control circuit board (11) in casing (1), control circuit board (11) include power supply circuit, CPU central processing unit is connected with communication interface, 3G module, MODEM module, INTERNET communication module, far infrared wireless communication module, RF wireless communication module, MBUS conversion module, its characterized in that: the shell (1) is also internally provided with a detection device (2) for detecting the electrifying condition of the control circuit board (11), the detection device (2) comprises a voltage conversion device (3), a control device (4), a filter device (5) and a flash prompt device (6), the voltage conversion device (3) is externally connected with a switch device (7), the switch device (7) is coupled with the mains supply to receive the mains supply voltage and output a switch signal, the voltage conversion device (3) is coupled with the switch device (7) to receive the switch signal and output a voltage conversion signal, the control circuit board (11) is coupled with the voltage conversion device (3) to receive the voltage conversion signal and respond to the voltage conversion signal to control the CPU to work, the control device (4) is coupled with the voltage conversion device (3) to receive the voltage conversion signal and output a control signal, the filtering device (5) is coupled to the control device (4) for receiving the control signal and performing signal filtering, and the flash prompting device (6) is coupled to the filtering device (5) for receiving the filtered control signal and performing flash prompting; when the flash prompting device (6) emits light only after the switch device (7) is switched on, the control circuit board (11) is normally electrified, and the CPU can normally work.

2. The centralized meter reading device according to claim 1, wherein: the voltage conversion device (3) comprises a transformer T, a first rectifier diode (31) and a second rectifier diode (32), one end of a primary side of the transformer T is coupled to a mains supply, the other end of the primary side of the transformer T is coupled to the switching device (7), one end of a secondary side of the transformer T is coupled to an anode end of the first rectifier diode (31), the other end of the secondary side of the transformer T is coupled to an anode end of the second rectifier diode (32), cathode ends of the first rectifier diode (31) and the second rectifier diode (32) are coupled to one end of the control circuit board (11), and a middle end of the secondary side of the transformer T and the other end of the control circuit board (11) are coupled to the control device (4).

3. The centralized meter reading device according to claim 1, wherein: the control device (4) comprises a detection circuit (41) and a starting circuit (42), wherein the detection circuit (41) is coupled to the voltage conversion device (3) to receive the voltage conversion signal and output a detection signal, and the starting circuit (42) is coupled to the detection circuit (41) to receive the detection signal and output a control signal.

4. The centralized meter reading device according to claim 3, wherein: the detection circuit (41) comprises an optical coupler A and a resistor R1, wherein the cathode end of a diode in the optical coupler A is coupled to the voltage conversion device (3), the anode end of the diode is coupled to the control circuit board (11), the emitter of a photosensitive triode in the optical coupler A is grounded through a resistor R1, and the collector of the photosensitive triode in the optical coupler A is coupled to the starting circuit (42) and outputs a detection signal.

5. The centralized meter reading device according to claim 1, wherein: the flash prompting device (6) comprises a flash circuit (61), a light-emitting diode (62), wherein the flash circuit (61) is coupled to the filter device (5) to receive the filtered control signal and output a flash signal, and the light-emitting diode (62) is coupled to the flash circuit (61) to receive the flash signal and respond to the flash signal to perform flash prompting.

6. The centralized meter reading device according to claim 5, wherein: the flash circuit (61) comprises a filter circuit (611), resistors R3, R5, R6, a capacitor C1 and a comparator a1, wherein one end of each of the resistors R3 and R5 is coupled to the filter device (5), one end of the resistor R3 is coupled to one end of the capacitor C1, the other end of the capacitor C1 is coupled to the filter circuit (611), the other end of the capacitor C1 and the other end of the resistor R5 are coupled to the same-phase end of the comparator a1, the inverting end of the comparator a1 is grounded through the resistor R6, and the output end of the comparator a1 is coupled to the light emitting diode (62).

7. The centralized meter reading device according to claim 5, wherein: the flash prompting device (6) further comprises a signal amplifying circuit (63) coupled between the flash circuit (61) and the light emitting diode (62).

8. The centralized meter reading device according to claim 5, wherein: light emitting diode (62) including set up in fixed part (621) on casing (1) lateral wall, connect in fixed part (621) tip and protrusion in scintillation portion (622) of casing (1) lateral wall, correspond on the lateral wall of casing (1) the position of fixed part (621) seted up with connecting hole (12) of fixed part (621) joint.

9. The centralized meter reading device according to claim 8, wherein: fastening grooves (121) are formed in the hole wall of the connecting hole (12) along the circumferential direction, and soft fastening rings (8) connected with the fastening grooves (121) in a clamped mode are arranged on the outer side wall of the fixing portion (621).