EP3516464A1

EP3516464A1 - Device for processing peripheral commands via a pilot wire

Info

Publication number: EP3516464A1
Application number: EP17772661.9A
Authority: EP
Inventors: Frédéric ROUTIER; Philippe FLAUX
Original assignee: Delta Dore SA
Current assignee: Delta Dore SA
Priority date: 2016-09-19
Filing date: 2017-09-19
Publication date: 2019-07-31
Also published as: WO2018050910A1; FR3056312A1; FR3056312B1

Abstract

The invention relates to a device for processing peripheral commands via a pilot wire, the device including: - a reception interface for receiving a pilot wire and an AC electrical power supply including a phase and a neutral; - a processor that is suitable for interpreting the form of the signals that are present on the phase and the pilot wire; - a control interface for controlling the peripheral, characterized in that the reception interface includes: - a first voltage divider bridge (R1, R2) linking the phase to a first input of the processor; - a second voltage divider bridge (R3, R4) linking the pilot wire to a second input of the processor; - a resistor (R5) linking the pilot wire to the neutral of the AC electrical power supply; - means for providing, on the basis of the AC electrical power supply, a DC electrical power supply by linking a power supply and a ground to the processor, the ground not being linked to the neutral of the AC electrical power supply.

Description

DEVICE FOR PROCESSING CONTROLS OF A DEVICE THROUGH A PILOT WIRE

The present invention relates to a method and a device for processing commands of a device via a pilot wire,

In home automation control systems, a pilot wire is conventionally used to control peripherals such as, for example, in a nonlimiting manner, heating devices, devices for concealing apertures. For example, by adapting the daily heat output or the opening and closing of occultation devices to the occupancy of a dwelling, the seasons, a substantial saving of energy can be achieved.

Depending on the type of device, a galvanic isolation between the AC power supply of the device and the electronic board is necessary or not. In addition, depending on the type of device, the mass of the continuous power supply of the electronic card of the receiving interface of the device control processing device, must or not be connected to the neutral of the peripheral AC power supply. .

The use of optocouplers to overcome these technical requirements is a solution. This solution is nevertheless expensive considering the price of such components.

The present invention aims to solve the disadvantages of the prior art by proposing a method and a device for processing commands of a device in which the use of opto-couplers is not necessary.

To this end, according to a first aspect, the invention proposes a device for processing commands from a device via a pilot wire, the device comprising:

an interface for receiving a pilot wire and an alternative electrical power supply comprising a phase and a neutral,

a processor capable of interpreting the shape of the signals present on the phase and the pilot wire,

- a device control interface,

characterized in that the receiving interface comprises:

a first voltage divider bridge connecting the phase to a first input of the processor, a second voltage divider bridge connecting the pilot wire to a second input of the processor,

a resistor connecting the pilot wire to the neutral of the AC power supply,

- Supply means, from the AC power supply, a DC power supply by a power connection and a mass to the processor, the mass is not connected to the neutral of the AC power supply.

Thus, the use of opto-couplers is not necessary to interpret the commands received.

The present invention also relates to a method for processing commands from a device via a pilot wire by a processing device, the method comprising the steps of:

obtaining the form of the signals present on the first and second inputs of the processor,

determining that a command of a first type is received if the signals present on the first and second inputs are 180 degrees out of phase,

determining that a command of a second type is received if the signals present on the first and second inputs are in phase,

determining that a command of a third type is received if the signal present on the first input is periodic and the signal present on the second input is zero,

determining that a command of a fourth type is received if the signal present on the first input is periodic and the signal present on the second input is positive,

transfer of a command representative of the determinations to the device.

According to a particular embodiment of the invention, each voltage divider bridge consists of two resistors.

According to one particular embodiment of the invention, the means for supplying a continuous power supply consist of a rectifying bridge and a capacitor.

According to a particular embodiment of the invention, the commands of the first, second, third and fourth types are chosen from the group of commands: climb order, descent order, stop command, high stop storage, low stop storage. , pairing the device with a wireless remote control. The invention also relates to computer programs stored on an information medium, said programs comprising instructions for implementing the methods described above, when they are loaded and executed by a computer system.

The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, said description being given in relation to the attached drawings, among which:

FIG. 1 shows a control system of a device according to the present invention;

FIG. 2 shows an exemplary architecture of a device for processing commands of a device according to the present invention;

FIG. 3 shows an exemplary electrical diagram of an interface for receiving a device for processing commands of a device according to the present invention;

FIG. 4 shows an example of an algorithm executed by the device for processing commands of a device according to the present invention;

Figs. 5 show different signals received or generated by the reception interface of a device for processing commands of a device according to the present invention.

Fig. 1 shows a control system of a device according to the present invention.

The control system of a device comprises a control module 12 which transmits, via a pilot wire Fp, different commands to a command processing device 10 for the control of a peripheral 14.

The control module 12 optionally delivers a power supply Ph and Ne alternative to the processing device and the device 14 controlled.

The control module 12 is for example placed in a building and allows centralized control of one or more peripherals 14.

The control module is for example placed on the production line of peripherals such as motorized shutters and allows to adjust the limit switches of the shutters. A device 14 is for example an opening concealment device, a heating device.

According to the present invention, the command processing device 10 comprises:

- a device control interface,

and the reception interface comprises:

a first voltage divider bridge connecting the phase to a first input of the processor,

a second voltage divider bridge connecting the pilot wire to a second input of the processor,

a resistor connecting the pilot wire to the neutral of the AC power supply,

According to the present invention, the command processing device:

- obtains the shape of the signals present on the first and second inputs of the processor,

determines that a command of a first type is received if the signals present on the first and second inputs are 180 degrees out of phase,

determines that a command of a second type is received if the signals present on the first and second inputs are in phase,

determines that a command of a third type is received if the signal present on the first input is periodic and the signal present on the second input is zero,

determines that a command of a fourth type is received if the signal present on the first input is periodic and the signal present on the second input is positive,

- transfers a command representative of the determinations to the device.

Fig. 2 shows an exemplary architecture of a device for processing commands of a device according to the present invention.

The device for processing commands of a peripheral device 10 comprises: a processor, microprocessor, or microcontroller 200;

a volatile memory 203;

a non-volatile memory 202;

a reception interface 205;

a control interface 206 of peripheral 20;

a communication bus connecting the processor 200 to the ROM 203, the RAM 203, the reception interface 205 and the control interface 206.

The processor 200 is capable of executing instructions loaded into the volatile memory 203 from the nonvolatile memory 202, an external memory (not shown), a storage medium, such as an SD card or other , or a communication network. When the command processing device of a device 10 is turned on, the processor 200 is capable of reading volatile memory 203 instructions and executing them. These instructions form a computer program which causes the processor 200 to implement all or part of the method described in connection with FIG. 4.

All or part of the process described in connection with FIG. 4 can be implemented in software form by the execution of a set of instructions by a programmable machine, such as a DSP (Digital Signal Processor in English or a Digital Signal Processing Unit in French) or a microcontroller, or be implemented in hardware form by a machine or a dedicated component, such as an FPGA (Field Programmable Gate Array) or an ASIC (Application-Specific Integrated Circuit) to an Application in French).

The receiving interface 205 is connected to the pilot wire Fp and two electric power supply son Ph and Ne. The circuit diagram of the receiving interface 205 is described with reference to FIG. 3.

The control interface 206 sends control signals to at least one device according to the signals received on the pilot wire.

Fig. 3 shows an exemplary electrical diagram of an interface for receiving a device for processing commands of a device according to the present invention.

The supply of the alternative electrical energy is ensured by a phase conductor Ph and a neutral conductor Ne. The phase conductor Ph is connected to the cathode of a diode D1, to the anode of a diode D2 and to a first termination of a resistor R1.

The cathode of the diode D2 is connected to the cathode of a diode D4 and to a first termination of a decoupling capacitor C1.

The anode of the diode D1 is connected to the anode of a diode D3 and to a second termination of the capacitor C1.

The neutral conductor is connected to the cathode of the diode D3, to the anode of the diode D4 and to a first termination of a resistor R5.

The diodes D1 to D4 form a rectifying bridge and form with the capacitor C1 a continuous electrical supply to the device for processing commands of a peripheral device 10.

The first termination of the capacitor C1 delivers a positive DC voltage denoted VCC and the second termination of the capacitor C1 is the mass of the DC power supply.

It should be noted here that the mass of the DC power supply is not connected to the neutral Ne of the AC power supply.

A second termination of the resistor R1 is connected to a first termination of a resistor R2.

A second termination of the resistor R2 is connected to the ground of the DC supply.

The resistors R1 and R2 form a voltage divider bridge and the signal Phs taken at the second termination of the resistor R1 is the signal of the phase adapted to a voltage value compatible with the continuous power supply of the control device. a device 10. The signal Phs is converted into a digital signal so as to be processed by the processor 200 of the command processing device of a peripheral device 10.

The pilot wire Fp is connected to a second termination of the resistor R5 and to a first termination of a resistor R3.

A second termination of the resistor R3 is connected to a first termination of a resistor R4.

A second termination of the resistor R4 is connected to the ground of the DC supply.

The resistors R3 and R4 form a voltage divider bridge and the signal Fps taken at the second termination of the resistor R3 is the signal of the pilot wire Fp at a value of voltage compatible with the DC power supply to the device control processing device 10. The signal Fps is converted into a digital signal so as to be processed by the processor 200 of the device for processing a device 10.

For example and without limitation, the resistors R1, R3 and R5 have a value of the order of 1MOhm and the resistors R2 and R4 have a value of 10OKOhm.

Fig. 4 shows an example of an algorithm executed by the device for processing commands of a device according to the present invention.

The present algorithm is described in an example in which it is executed by the processor 200.

In step E40, the processor 200 obtains a measurement of the signal Fps.

In step E41, the processor 200 obtains a measurement of the signal Phs.

In step E42, the processor 200 checks whether the signals Phs and Fps are in phase opposition.

An example is given with reference to FIG. 5a.

Fig. 5a shows different signals received or generated by the reception interface of a device for processing commands of a device according to the present invention.

In FIG. 5a, the signal 500 is the signal Fps on the pilot wire Fp, the signal 501 is the signal Phs and the signal 502 is the signal Fps.

No signal is present on the pilot wire Fp.

Fps and Phs signals are in phase opposition.

If the signals Phs and Fps are out of phase, the processor 200 proceeds to step E43. If not, processor 200 proceeds to step E44.

In step E43, the processor 200 determines that the command received is a command of a first type and controls the command interface 206 for it to transfer to the device 14 the interpreted command. The first type control is for example a rising order of a room temperature or an occultation device.

In step E44, the processor 200 checks whether the signals Phs and Fps are in phase.

An example is given with reference to FIG. 5b.

Fig. 5b represents different signals received or generated by the reception interface of a device for processing commands of a device according to the present invention. In FIG. 5b, the signal 510 is the signal Fps on the pilot wire Fp, the signal 511 is the signal Phs and the signal 512 is the signal Fps.

The pilot wire has a signal identical to the signal on the Ph phase, a 50 Hz AC signal of 230 volts.

Fps and Phs signals are in phase.

If the Phs and Fps signals are in phase, the processor 200 proceeds to step E45. If not, processor 200 proceeds to step E46.

In step E45, the processor 200 determines that the received command is a command of a second type and controls the interface 206 so that it transfers to the peripheral 14 the interpreted command. The second type of control is for example a descent order of a room temperature or an occultation device.

In step E46, the processor 200 checks whether the signal Fps is at the logic value "0" and if the signal Phs is a periodic signal.

An example is given with reference to FIG. 5c.

Fig. 5c represents different signals received or generated by the reception interface of a device for processing commands of a device according to the present invention.

In FIG. 5 c, the signal Fps is at the logic value "0" and if the signal Phs is a periodic signal.

The pilot wire has a half-wave 50Hz negative signal of 230/2 Volts.

If the signal Fps is at the logic value "0" and if the signal Phs is a periodic signal, the processor 200 proceeds to step E47. If not, processor 200 proceeds to step E48.

In step E47, the processor 200 determines that the received command is a command of a third type and controls the command interface 206 for it to transfer the interpreted command to the device 14. The third type control is for example a stop command of a heating or an occulting device.

In step E46, the processor 200 checks whether the signal Fps is at the logic value "1" and whether the signal Phs is a periodic signal.

An example is given with reference to FIG. 5d.

Fig. 5d represents different signals received or generated by the reception interface of a device for processing commands of a device according to the present invention. In FIG. 5d, the signal Fps is at the logic value "1" and if the signal Phs is a periodic signal.

If the signal Fps is at the logic value "1" and if the signal Phs is a periodic signal, the processor 200 proceeds to step E48. If not, processor 200 interrupts the present algorithm and returns to step E40.

In step E48, the processor 200 determines that the command received is a command of a fourth type and controls the command interface 206 for it to transfer the interpreted command to the device 14. The fourth type command is for example an association order of the device with a wireless remote control.

Of course, the present invention is not limited to the embodiments described herein but encompasses, on the contrary, any variant within the scope of the skilled person.

Claims

1) device for processing commands from a device via a pilot wire, the device comprising:

- a device control interface,

characterized in that the receiving interface comprises:

a first voltage divider bridge (R1, R2) connecting the phase to a first input of the processor,

a second voltage divider bridge (R3, R4) connecting the pilot wire to a second input of the processor,

a resistor (R5) connecting the pilot wire to the neutral of the AC power supply,

2) Device according to claim 1, characterized in that each voltage divider bridge consists of two resistors.

3) Device according to claim 2, characterized in that the supply means of a continuous power supply consist of a rectifying bridge and a capacitor.

4) A process for processing commands from a device via a pilot wire by a processing device according to any one of claims 1 to 3, characterized in that the method comprises the steps of:

determining that a command of a first type is received if the signals present on the first and second inputs are 180 degrees out of phase, determining that a command of a second type is received if the signals present on the first and second inputs are in phase,

transfer of a command representative of the determinations to the device.

5) Method according to claim 4, characterized in that the commands of first, second, third and fourth types are selected from the group of commands: climb order, descent order, stop command, high stop storage, memorization low stop, association of the device with a wireless remote control.