This file is automatically generated from the Git tag messages. v1.3.2 OwlPS, version 1.3.2 (development point release) This is the last release “made in Université de Franche-Comté” by Matteo Cypriani (or to be more precise, as an employee of the University). It is also the first public release. Due to the fact that it is a “time-based” release, it does not correspond to a particular important change, but here are the major modifications since v1.3.1: - OwlPS Positioner can now compute the error in two dimension by setting the option output.2d-error. - One can now specify the number of requests OwlPS Client will send (-N option). - libowlps: owl_timestamp_to_string() now always displays nanoseconds on 9 digits. - A bunch of bug and cosmetic fixes, mainly in OwlPS Positioner. v1.3.1 OwlPS, version 1.3.1 (development point release) This release features various important changes. First of all, we finally got rid of the OpenWrt-specific makefiles, and unified all the makefiles thanks to the new common files (common.mk and common-rules.mk). To compile for OpenWrt, one has to set the variable OPENWRT_VERSION (for example make OPENWRT_VERSION=10.03), or to use the main Makefile_atheros_openwrt. The format of the positioning requests has changed, and now includes padding bytes. OwlPS Client features a new option (-s) to set the size of the transmitted data. Major autocalibration bugs fixed in OwlPS Positioner: - Segfault with positioning.generate-reference-points. - Failed assertion with positioning.calibration-requests-timeout > 0. - Several problems preventing the generation of multi-packet reference points (positioning.generate-single-packet-reference-points=false). The Positioner option generate-single-packet-reference-points has been renamed generate-multi-packet-reference-points and the default is now to generate multi-packet reference points. Positioner now features the option replay (--replay on), which change the time-related behaviour, and is useful for the option positioning.calibration-requests-timeout: instead of computing the elapsed time with the current time on the machine running Positioner, we keep track of the most recent received request's timestamp, and use it as the current time. Unfortunately, this option is quite useless if the clock of the mobile terminals and listeners are not synchronised (actually if this is the case, one should run the server without enabling the replay mode, because this option could cause the deletion of non-obsolete calibration requests). Positioner now features the option positioning.unique-calibration-request. Thanks to this behaviour (which was already the default), it is not too annoying (at least when using autocalibration) that the replay option does not work without synchronised clocks. And last but not least, the OwlPS logo enters the repository. v1.3.0 OwlPS, version 1.3.0 (development point release) This is the first release of the development branch 1.3. The positioning requests now contain the total number of packets of the request, along with the current packet number (libowlps API change). This allows for the introduction of new similarity methods for cartography-based algorithms, based on the distribution of the SSs: - “interval” uses the number of values within the interval [mean-std.dev.;mean+std.dev.]. - “interval2” computes the percent of packets in both the intervals [Im-0.674×Is, Im+0.674×Is] and [Im-Is, Im+Is], and selects the measurement which have the closest percentage of packets to the theoretical percentages of the two intervals (see owlps-positioner.conf for details). Autocalibration improvements: - Due to the availability of packet numbers, we are now able to generate multi-packet requests (which is required for the new similarity methods to work properly). - The APs are now selected not only by their angle, but also in function of the coverage with the receiver AP. - The APs are now selected with signed angles, which improves the selection in some cases. The minimum number of reference AP is lowered to one. - The building's floors are now handled (2.5-D positioning). New Positioner options: - positioning.calibration-requests-timeout: allows to delete old calibration requests. - positioning.generate-single-packet-reference-points: allows to choose between single and multi-packet reference points in the autocalibration. - positioning.generated-meshing-grain-z: vertical grain of the autocalibration meshing (should be 1 in most cases, as it is currently a floor number). - positioning.smallest-ss: allows to specify the smallest possible SS value received by the listeners. - positioning.ss-similarity: allows to choose the similarity method used. v1.2 OwlPS, version 1.2 Changes since v1.1.8: - The Positioning module has been renamed Positioner, to be consistent with the other modules, and the executable file is owlps-positionerd. - Positioner: the RADAR algorithm is renamed NSS. - CLI option are standardised amongst all the modules (e.g. -i as destination IP). - A daemon mode has been implemented in Client, Listener and Aggregator (option -D). - All the requests (positioning, calibration, autocalibration) are now sent to the same port by default. - Two different ports are now used for autocalibration hello messages and autocalibration orders. This allows to run a listener and an aggregator on the same machine with the autocalibration enabled. - The default time-related values has been updated. By default the aggregator will not be able to fully aggregate calibration requests any more, only the positioning and autocalibration requests. In order to aggregate calibration requests, the aggregation timeout needs to be increased, or the number of packets of the request and the delay between each of them lowered. - Some bug fixes, minor improvements and cosmetic changes. Release notes: - Those programs are developped and tested on GNU/Linux. All the modules but the Listener (which is Linux-specific for the moment) also build on NetBSD, FreeBSD, OpenBSD and DragonFly BSD. The Positioner does not build with versions of GCC older than 4.4; for some reason, it also does not compile on DragonFly BSD with GCC 4.4. - The implicit mode is still an experimental feature. It is pretty much untested and needs to be redesigned properly. - The full changelog is long, please refer to the development point releases' changelogs to have an overview of the changes since v1.0. Long story short: autocalibration! v1.1.8 OwlPS, version 1.1.8 (development point release) Along with the usual bug fixes, minor improvements, and more or less important changes (listed below), two modules were added: - owlps-udp-to-http: a program that serves the results of OwlPS Positioning through HTTP. - libowlps-resultreader: a library that handles results sent by OwlPS Positioning (with its sample program owlps-resultreader-udp). It supports the previous new module OwlPS UDP-to-HTTP, as well as OwlPS Client (for the -l option). API changes: - libowlps: + Listener-specific code was moved into owlps-listener. + OWL_TIMESTAMP_STR_LEN was renamed OWL_TIMESTAMP_STRLEN. + All the elements declared in owlps.h are now prefixed with "owl_". - libowlps-client: the functions are now prefixed with "owl_" instead of "owlclient_". OwlPS Positioning: - The options minmax-start and minmax stop are renamed area-start and area-stop. - FBCM did not work with autocalibration, this is fixed. - Fixed a segfault that occurred in certain circumstances with the option positioning.radar-ignore-ap-reference-points activated. - CSV format changes (CSV & UDP outputs): + Removed the useless "Error" string before the error field. + Added the area in which is the result for each algorithm. v1.1.7 OwlPS, version 1.1.7 (development point release) Finally the autocalibration is here! All the commits of this release are more or less related to the autocalibration development, in OwlPS Positioning. There is some work remaining, but this release features the main basis of the autocalibration. Most user visible changes: a lot of new options, including reading the mobiles' characteristics from a CSV file; see the sample configuration file for details. Note: this is the version used to participate at the EvAAL 2011 competition, with the required post-competition cleaning. v1.1.6 OwlPS, version 1.1.6 (development point release) This release was developed in parallel with the autocalibration development branch, so it contains a relatively large amount of things (as usual, fixes, cleaning and a few new features). Here are the most noticeable changes introduced, module by module. Positioning: - The long-term, unnoticed, and hard to debug ReferencePoint creation bug was fixed, and - the option --radar-average-reference-points was added; the default is to keep the old bug's consequent behaviour, i.e to search for the nearest calibration request in SS instead of the nearest reference point, since it gives better results (for a calibration with several mobile's orientation). - The option --verbose was added. Aggregator: - Semaphores are now used to lock the lists of APs and requests. - The verbose mode was changed into a verbose level. - The -q (quiet) option was added. Listener: - The verbose mode was changed into a verbose level. Client: - The option -f (flood mode) was added, to allow the client to continuously send requests. Other changes: - libowlps, libowlps-client, owlps-client and owlps-aggregator now build on OpenBSD and DragonFlyBSD, thanks to some cleaning and fixes (mainly in the libraries and makefiles). Untested on FreeBSD and NetBSD, but it should work painlessly. - All the configurable delays are now in milliseconds or seconds (no more microseconds). - We finally deleted writeInDb, since it is useless for the moment. v1.1.5 OwlPS, version 1.1.5 (development point release) This small release includes the following changes: - Positioning computes the error for each algorithm when the pseudo-algorithm "Real" is used. That changes the results' CSV format (OutputCSV & OutputUDPSocket). - Positioning: add --minmax-start & --minmax-stop to limit the search space of MinMax. - Positioning's configuration files updated (they are now really example files). - Add -V to print the version, in each module. - A fair amount of bug fixes and small improvements. v1.1.4 OwlPS, version 1.1.4 (development point release) Here are the most noticeable changes for this release: - The request type and calibration data (position & direction) are now handled in all modules. - The listener can send its own position in autocalibration requests. - The OwlPS Positioning module: + handles SIGINT and SIGTERM to exit correctly; + adds the option flush-output-files; + includes the algorithm name in the result output; + writes all the results for a given request in a bunch; + accepts '-' as file names to read the standard input or write to the standard output; + sends the computed results by UDP (CSV string format); note that currently, the mobile cannot receive this format. - The last endianness issues have (hopefully) been fixed. - libowlps API change: constants for localisation request types (PACKET_TYPE_*) are now OWL_REQUEST_*; the global variable run is renamed owl_run; owl_request includes the position; float endianness conversion functions were added. v1.1.3 OwlPS, version 1.1.3 (development point release) We finally got rid of mobile-centred. The code is still in the memory of the VCS, of course, but we do not have time to bother maintaining it. owlps-positioning is now linked to libowlps, and is able to read aggregated requests sent by the aggregator via UDP, thanks to the new class InputUDPSocket. This exchange does not concern calibration nor autocalibration requests yet, since the aggregator do not send calibration data. As usual, this release includes some refactoring, code improvement, bug fixes and various minor new features. The most important code improvement concerns thread handling in the listener and the aggregator, that is now far cleaner. libowlps API changes: types are now all lowercase and prefixed, several new functions were added, and the behaviour of owl_mac_bytes_to_string() is changed. v1.1.2 OwlPS, version 1.1.2 (development point release) Note the new case of "OwlPS": Owl Positioning System should make easier to memorise "Open Wireless Positioning System". We are still on the way to autocalibration, and a lot of things were done since v1.1.1, mostly on libowlps and infrastructure-centred code. The emission of autocalibration requests by the listeners now works as intended. The code has been adapted to be able to work in a complex network configuration: multiple Wi-Fi modes (e.g. monitor, master and ad-hoc), multiple IP addresses, etc. Endianness issues have been addressed, and everything works well now. This release includes major library API changes: functions are now prefixed, several functions were renamed, and stdint types are used in custom types. The data format also changes: we now use nanosecond precision in all modules, via the new type TIMESTAMP which is inspired from the C++ class Timestamp created for the Positioning module. Therefore, the timestamp field of the CSV outputs has a nanosecond precision, and its format is "seconds.nanoseconds". Finally, a lot of other less visible things were accomplished: bug fixes and improvements, code refactoring, new options, etc. v1.1.1 OWLPS, version 1.1.1 (development point release) We are on the way to autocalibration. The listeners can send Hello messages to the aggregator, which now handles a list of listeners and schedules autocalibration requests. Emission of autocalibration requests by the listeners has been worked on, but is very buggy at this time, and therefore not operational yet. v1.1.0 OWLPS, version 1.1.0 (development point release) Cleaning, refactoring, translation of comments from French to English, bug fixes and minor features. The only very noticeable thing is the creation of the libowlps-client library; it is to prepare the future ability of the listener to send autocalibration requests. v1.0 OWLPS, version 1.0 Few changes are actually visible since version 0.8. This release is a new start for owlps-positioning, which was rewritten almost completely. Support for Viterbi-enabled algorithms has been dropped; this could be reintegrated someday, but it is not needed for our current researches, so it is not in the top-priority list. Extensive non-regression tests have not been conducted yet (we need to ensure that the results obtained with v1.0 are consistent with those obtained with v0.8). v0.9.0 OWLPS, version 0.9.0 (development point release) This release includes the internship work of Julien Graeffly (mostly on the positioning server), and some improvements (configuration file support, better handling of command-line options, Fonera compilation, passive mode, etc.). v0.8 OWLPS, version 0.8 Version 0.8, as documented in the technical report "Open Wireless Positioning System, Version 0.8". v0.6 "OWLPS", version 0.6 The system allows to perform infrastructure-based measurements. Computation has to be done manually. Note: at this time, the system was not called "OWLPS" yet. v0.4 "OWLPS", version 0.4 First, early release of the student works TX (mobile-centred measurements) and TO (infrastructure-centred).