CN-122028156-A - Method for operating a transmitter and transmitter

CN122028156ACN 122028156 ACN122028156 ACN 122028156ACN-122028156-A

Abstract

The invention relates to a method for operating a transmitter and a transmitter. The invention relates to a method for operating a transmitter, comprising providing the transmitter with a first processing unit, a second processing unit and an internal communication module for communication with a communication module external to the transmitter, wherein the first processing unit and the second processing unit are connected to each other, wherein the first processing unit is connected to the internal communication module, controlling the internal communication module by the first processing unit such that a first data packet is transmitted during a first activity of the first processing unit, transmitting activity information from the first processing unit to the second processing unit, wherein the activity information comprises a second activity time and a second activity duration of a future second activity of the first processing unit, and the future second activity comprises controlling the internal communication module by the first processing unit such that the second data packet is transmitted, wherein the future second activity is a repetition of the first activity.

Inventors

GRIECH REINHARD
Patrice grossperrin
Bjorn Haas
Philip Heinrich Jinte

Assignees

恩德斯豪斯分析仪表两合公司

Dates

Publication Date: 20260512
Application Date: 20251105
Priority Date: 20241112

Claims (10)

1. A method for operating a transmitter, comprising: providing a transmitter (1) with a first processing unit (10), a second processing unit (20) and an internal communication module (30) for communicating with a communication module (2) external to the transmitter (1), Wherein the first processing unit (10) and the second processing unit (20) are connected to each other, Wherein the first processing unit (10) is connected to the internal communication module (30), -Controlling the internal communication module (30) by the first processing unit (10) such that a first data packet (D1) is sent during a first activity (A1) of the first processing unit (10), Transmitting Activity Information (AI) from the first processing unit (10) to the second processing unit (20), wherein the Activity Information (AI) comprises a second activity time (TA 2) and a second activity duration (TDA 2) of a future second activity (A2) of the first processing unit (10), and the future second activity (A2) comprises controlling the internal communication module (30) by the first processing unit (10) such that a second data packet (D2) is sent, wherein the future second activity (A2) is a repetition of the first activity (A1), Checking an overlap of a future second activity (A2) and a future third activity (A3) of the second processing unit (20), wherein the future third activity (A3) has a third activity time (TA 3) and a third activity duration (TDA 3), Transmitting Overlay Information (OI) from the second processing unit (20) to the first processing unit (10), wherein the Overlay Information (OI) comprises whether the future second activity (A2) overlaps with the future third activity (A3), -Suppressing, by the first processing unit (10), the future second activity (A2) depending on the Overlap Information (OI) such that a temporal overlap of the future second activity (A2) and the future third activity (A3) is prevented.
2. The method according to claim 1, wherein the Activity Information (AI) comprises a first repetition frequency (F1) of the future second activity (A2) for repetitions (A2') of the future second activity.
3. The method according to claim 2, wherein the Overlapping Information (OI) comprises a Suppression Duration (SD) such that, after suppression, repetitions (A2') of the future second activity (A2) and at least one of the future second activities depending on the first repetition frequency (F1) are suppressed.
4. A method according to claim 3, wherein, when suppressed, the first processing unit (10) counts repetitions (A2') of the suppressed second activity (A2) and the suppressed future second activity and compares them with a suppression threshold, wherein, when the suppression threshold is reached, a Warning Message (WM) is sent from the first processing unit (10) to the second processing unit (20), wherein, when the second processing unit (20) receives the Warning Message (WM), the second processing unit (20) suppresses or shifts the future third activity (A3).
5. The method according to claim 2, wherein the Overlapping Information (OI) comprises a third repetition frequency (F3) of the future third activity (A3) for repetitions (A3') of the future third activity, Wherein the first repetition frequency (F1) is determined as a function of the third repetition frequency (F3) and the second activity duration (TDA 2) such that several subsequent repetitions of the future second activity (A2) and a repetition of the future third activity (A3) are prevented from overlapping in time.
6. A method for operating a transmitter, comprising: providing a transmitter (1) with a first processing unit (10), a second processing unit (20) and an internal communication module (30) for communicating with a communication module (2) external to the transmitter (1), Wherein the first processing unit (10) and the second processing unit (20) are connected with each other, Wherein the first processing unit (10) is connected to the internal communication module (30), -Controlling the internal communication module (30) by the first processing unit (10) such that a first data packet (D1) is sent during a first activity (A1) of the first processing unit (10), -Transmitting Activity Information (AI) from the first processing unit (10) to the second processing unit (20), wherein the Activity Information (AI) comprises a first repetition frequency (F1) of a future second activity (A2) of the first processing unit (10), a second activity time (TA 2) of the future second activity (A2), a second activity duration (TDA 2), and the future second activity (A2) comprises controlling the intercom module (30) by the first processing unit (10) such that a second data packet (D2) is transmitted, wherein the future second activity (A2) is a repetition of the first activity (A1), Checking the second activity time (TA 2) and the second activity duration (TDA 2) of the second processing unit (20) and the first repetition frequency (F1) for an overlap with a third activity time (TA 3), a third activity duration (TDA 3) and a third repetition frequency (F3) of a future third activity (A3), -Setting the third repetition frequency (F3) such that the first repetition frequency (F1) is a multiple of the third repetition frequency (F3) or the third repetition frequency (F3) is a multiple of the first repetition frequency (F1), -Shifting, by the second processing unit (20), the future third activity (A3) by an offset (PSI) depending on the Activity Information (AI) such that a temporal overlap of the future second activity (A2) with the future third activity (A3) and a temporal overlap of a repetition (A2 ') of the future second activity with a repetition (A3') of the future third activity are prevented.
7. The method according to any of the preceding claims, wherein the method further comprises assigning a processing task (R1) from the second processing unit (20) to the first processing unit (10), wherein the processing task (R1) has a processing time (TR 1) and a processing duration (TDR 1) such that a temporal overlap of the processing task (R1) and the future third activity (A3) is prevented.
8. The method according to claim 7, wherein the assignment of a processing task (R1) is preceded by a request for the processing task (R1) from the first processing unit (10) to the second processing unit (20).
9. The method according to any of the preceding claims, wherein the first processing unit (10) has a first clock and the second processing unit (20) has a second clock and in each case a different clock source, and the method further comprises the step of exchanging synchronization messages with a timestamp between the first processing unit (10) and the second processing unit (20), wherein the first processing unit (10) adapts the first clock to the timestamp or the second processing unit (20) adapts the second clock to the timestamp.
10. A transmitter (1) comprising: -a first processing unit (10), a second processing unit (20), an internal communication module (30) for communicating with a communication module (2) external to the transmitter (1), Wherein the first processing unit (10) and the second processing unit (20) are connected to each other, Wherein the first processing unit (10) is connected to the internal communication module (30), Wherein the transmitter (1) is adapted to be connected to an external energy source (3) having an external power level, and the transmitter (1) is adapted to operate at an internal power level, wherein the internal power level is less than or equal to the external power level.

Description

Method for operating a transmitter and transmitter Technical Field The present invention relates to a method for operating a transmitter and a transmitter. Background In analytical measurement techniques, in particular in the field of water management, environmental analysis, in industry, for example in food technology, biotechnology and medicine, and for most varied laboratory applications, the variables to be measured, such as pH, conductivity or even the concentration of analytes, such as ions or dissolved gases in a gas or liquid measurement medium, are of great importance. These measured variables can be detected and/or monitored, for example, by means of electrochemical sensors, such as optical sensors, potentiometric sensors, amperometric sensors, voltammetric sensors or coulombic sensors, or also conductivity sensors. These sensors are usually connected to so-called transmitters which process the sensor signals and transmit them to, for example, a control center. One type of connection between the transmitter and the control center is achieved via only two cables. In this case, the transmitter is also referred to as a two-wire device. With such two-wire devices, the available power is severely limited, which makes such devices particularly suitable for potentially explosive environments. These devices communicate using the energy-efficient HART protocol, which is designed for signals between 4 mA and 24 mA via, for example, a current loop between the control center and the two-wire device. At a supply voltage of typically a maximum of about 17V, the minimum available current is typically limited to 3.6 mA. This results in an available power of about 61 mW. In many devices, the operating voltage is reduced still further in order to be able to supply additional consumers, such as explosion-proof resistors or other devices in the current loop. This further reduces the available power. For example, iTEMP TMT transmitters from the Endress+Hauser can operate at a minimum supply voltage of only about 10V, which results in a usable minimum power of only 36 mW. However, socs currently used in many transmitters with integrated bluetooth communication modules have peak power consumption for wireless communication of up to about 30 mW, while on average they typically require significantly less than 1 mW for their communication tasks. Although on average there is sufficient power from the current loop for all device functions of the transmitter other than bluetooth, only about 6 mW is temporarily available for functions such as measuring sensor values, processing and fieldbus communication, as the remainder is for bluetooth communication. Thus, the total power consumption of the device may briefly exceed the power provided by the current loop. To cover this short-term energy demand, energy is typically stored temporarily in an energy storage device (e.g., a capacitor). The amount of energy storage required depends on the duration and magnitude of the power peak. However, this has the disadvantage that additional or larger electronic components are required and, in addition, the power available in the transmitter increases to a greater level than that provided by the current loop. This makes it difficult to meet the explosion protection ("Ex") requirements. Disclosure of Invention It is therefore an object of the invention to propose a method which enables a transmitter to be operated in an energy-efficient manner. This object is achieved according to the invention by a method for operating a transmitter according to claim 1. The method according to the invention comprises the following steps: Providing the transmitter with a first processing unit, a second processing unit and an internal communication module for communicating with a communication module external to the transmitter, Wherein the first processing unit and the second processing unit are connected with each other, Wherein the first processing unit is connected to the internal communication module, Controlling the internal communication module by the first processing unit such that the first data packet is transmitted during a first activity of the first processing unit, Transmitting activity information from the first processing unit to the second processing unit, wherein the activity information comprises a second activity time and a second activity duration of a future second activity of the first processing unit, and the future second activity comprises controlling, by the first processing unit, the internal communication module such that the second data packet is transmitted, wherein the future second activity is a repetition of the first activity, Checking for an overlap of a future second activity of the second processing unit with a future third activity, wherein the future third activity has a third activity time and a third activity duration, Transmitting overlay information from the second processing unit to the first processing unit, where