公开(公告)号：US10057010B2

公开(公告)日：2018-08-21

申请号：US15108219

申请日：2014-12-23

申请人： GrDF ,  SUEZ Groupe

发明人： Jean Louis Dornstetter

IPC分类号： H04L1/00 ,  G06F11/10 ,  H03M13/09 ,  H03M13/33 ,  H03M13/45 ,  H04W88/16

CPC分类号： H04L1/0045 ,  G06F11/1004 ,  H03M13/09 ,  H03M13/333 ,  H03M13/453 ,  H04L1/0038 ,  H04L1/0041 ,  H04L1/0061 ,  H04W88/16

摘要： A method for receiving data frames which consists of determining a reference frame by firm decisions on the value of each bit received and then verifying the reference frame according to an integrity check code used for the transmission. The method may include the following steps: calculating, for each bit of said reference frame, a plausibility value that represents the probability of a transmission error; and, in the event of incompatibility with said integrity check code, identifying in said reference frame a non-empty finite set of the most plausibly erroneous bits in accordance with said plausibility values; listing candidate frames each corresponding respectively to one of the possible combinations of numbers of reversals of the identified most plausibly erroneous bits; and verifying the compatibility of the listed candidate frames with said integrity check code.

公开(公告)号：US09935801B2

公开(公告)日：2018-04-03

申请号：US15108248

申请日：2014-12-23

申请人： GrDF ,  SUEZ Groupe

发明人： Robert Lacoste ,  Jean-Louis Dornstetter

IPC分类号： H04L27/12 ,  H04L27/14 ,  H04L27/10 ,  H04W56/00 ,  H04Q9/00 ,  H04L7/033 ,  H04W4/00 ,  H04L27/20 ,  H04W88/16

CPC分类号： H04L27/14 ,  H04L7/033 ,  H04L27/10 ,  H04L27/122 ,  H04L27/2014 ,  H04Q9/00 ,  H04Q2209/40 ,  H04Q2209/60 ,  H04W4/70 ,  H04W56/0015 ,  H04W56/0035 ,  H04W56/004 ,  H04W88/16

摘要： The invention relates to a method for controlling digital data transmission in a remote-reading apparatus including a plurality of metering devices, each equipped with a radiofrequency module for communicating with a radiofrequency transmission/reception device of a gateway system of the apparatus, the method comprising a step of transmitting a digital signal from the radiofrequency module to the radiofrequency transmission/reception device and/or from the radiofrequency transmission/reception device to the radiofrequency module, the transmission being carried out via a carrier modulated by frequency shift modulation, the method being characterized in that the frequency shift modulation has a modulation index strictly equal to an integer value divided by two, and in that it includes a step of receiving the signal transmitted according to the modulation, comprising operations of generation of a synchronization signal synchronized with the received signal and synchronous detection of the received signal using the synchronization signal.

公开(公告)号：US20170205267A1

公开(公告)日：2017-07-20

申请号：US15328515

申请日：2015-07-23

申请人： SUEZ GROUPE

发明人： Pierre-Antoine JARRIGE ,  Guillaume GANCEL ,  Francis CAMPAN

IPC分类号： G01F15/06 ,  G01L19/08 ,  G06F17/50

CPC分类号： G01F15/068 ,  G01L19/083 ,  G05B23/0243 ,  G06F17/5009

摘要： A hydraulic model of the network is used that describes the structural data and the laws governing the distributed flows. The model is fed with operational data relative to primary input parameters and, using the model, theoretical values are obtained for primary output parameters. The theoretical values are compared with measured values. In case of a significant deviation, the corresponding primary output parameter becomes a secondary input parameter in an inverse model including new secondary output parameters, which are added relative to the direct model and which correspond to primary input parameters. The secondary output parameters are, by priority, those to which the primary output parameter exhibiting the abnormal value is particularly sensitive. If necessary, the method is implemented iteratively by progressively restricting the number of the secondary output parameters.